Month	Percent
1960-01-01	3.9100
1960-02-01	4.1100
1960-03-01	4.1700
1960-04-01	4.2200
1960-05-01	4.2500
1960-06-01	4.1500
1960-07-01	4.5300
1960-08-01	4.0500
1960-09-01	4.1500
1960-10-01	3.9900
1960-11-01	3.7600
1960-12-01	3.7000
1961-01-01	3.6500
1961-02-01	3.5900
1961-03-01	3.7000
1961-04-01	3.7000
1961-05-01	3.9100
1961-06-01	3.7600
1961-07-01	3.6500
1961-08-01	3.5200
1961-09-01	3.5700
1961-10-01	3.6000
1961-11-01	3.5200
1961-12-01	3.5800
1962-01-01	3.5100
1962-02-01	3.5600
1962-03-01	3.6500
1962-04-01	3.9300
1962-05-01	3.9800
1962-06-01	3.5900
1962-07-01	3.6600
1962-08-01	3.4600
1962-09-01	3.4800
1962-10-01	3.5100
1962-11-01	3.5000
1962-12-01	3.5100
1963-01-01	3.4100
1963-02-01	3.4100
1963-03-01	3.4400
1963-04-01	3.8500
1963-05-01	3.9500
1963-06-01	4.9300
1963-07-01	5.1400
1963-08-01	4.0300
1963-09-01	3.2500
1963-10-01	3.6300
1963-11-01	4.3600
1963-12-01	4.9100
1964-01-01	4.2700
1964-02-01	4.3600
1964-03-01	5.0600
1964-04-01	5.0500
1964-05-01	6.2800
1964-06-01	4.8600
1964-07-01	4.7700
1964-08-01	4.7200
1964-09-01	4.7500
1964-10-01	4.3600
1964-11-01	4.1400
1964-12-01	4.1800
1965-01-01	3.8700
1965-02-01	4.2100
1965-03-01	4.4200
1965-04-01	3.9800
1965-05-01	4.3100
1965-06-01	4.4000
1965-07-01	4.3500
1965-08-01	4.0000
1965-09-01	3.8100
1965-10-01	3.9600
1965-11-01	4.6600
1965-12-01	4.4800
1966-01-01	3.9200
1966-02-01	4.3400
1966-03-01	4.5500
1966-04-01	4.3700
1966-05-01	4.8300
1966-06-01	4.7800
1966-07-01	4.7900
1966-08-01	4.7700
1966-09-01	4.6000
1966-10-01	5.2700
1966-11-01	5.4100
1966-12-01	5.7000
1967-01-01	5.5700
1967-02-01	5.0400
1967-03-01	5.0000
1967-04-01	5.0600
1967-05-01	4.9300
1967-06-01	4.5000
1967-07-01	4.7900
1967-08-01	4.4800
1967-09-01	4.3100
1967-10-01	4.4800
1967-11-01	4.6500
1967-12-01	4.7600
1968-01-01	5.0000
1968-02-01	4.7700
1968-03-01	5.0800
1968-04-01	5.1100
1968-05-01	5.6700
1968-06-01	5.7700
1968-07-01	6.0000
1968-08-01	5.9300
1968-09-01	6.7200
1968-10-01	7.1500
1968-11-01	8.9300
1968-12-01	8.2500
1969-01-01	8.0700
1969-02-01	7.8700
1969-03-01	8.1800
1969-04-01	8.3300
1969-05-01	8.9800
1969-06-01	9.4700
1969-07-01	9.2000
1969-08-01	8.8700
1969-09-01	9.4000
1969-10-01	9.3700
1969-11-01	9.5700
1969-12-01	10.4200
1970-01-01	10.3150
1970-02-01	9.6960
1970-03-01	9.4560
1970-04-01	9.0210
1970-05-01	8.9190
1970-06-01	9.3420
1970-07-01	8.6250
1970-08-01	8.1290
1970-09-01	8.1210
1970-10-01	7.8270
1970-11-01	7.2920
1970-12-01	7.4760
1971-01-01	6.5200
1971-02-01	5.9960
1971-03-01	5.7660
1971-04-01	5.5210
1971-05-01	5.8830
1971-06-01	6.4500
1971-07-01	5.6130
1971-08-01	5.6980
1971-09-01	5.9750
1971-10-01	5.9520
1971-11-01	5.5130
1971-12-01	5.2940
1972-01-01	5.3150
1972-02-01	5.2330
1972-03-01	4.7780
1972-04-01	4.8420
1972-05-01	5.3190
1972-06-01	3.8460
1972-07-01	3.8100
1972-08-01	3.7460
1972-09-01	3.8790
1972-10-01	5.1770
1972-11-01	6.3040
1972-12-01	7.3100
1973-01-01	7.2180
1973-02-01	7.7280
1973-03-01	7.5080
1973-04-01	7.4630
1973-05-01	7.7180
1973-06-01	7.6630
1973-07-01	8.5240
1973-08-01	9.1590
1973-09-01	10.1270
1973-10-01	11.1980
1973-11-01	11.1170
1973-12-01	11.5160
1974-01-01	13.5280
1974-02-01	12.4820
1974-03-01	12.1490
1974-04-01	11.8330
1974-05-01	12.9070
1974-06-01	13.5670
1974-07-01	13.8390
1974-08-01	13.7520
1974-09-01	13.4250
1974-10-01	13.1490
1974-11-01	12.4290
1974-12-01	11.8670
1975-01-01	11.4150
1975-02-01	9.9550
1975-03-01	9.1730
1975-04-01	8.2830
1975-05-01	7.5970
1975-06-01	7.3210
1975-07-01	7.2780
1975-08-01	7.1770
1975-09-01	6.9170
1975-10-01	6.6810
1975-11-01	6.7420
1975-12-01	6.4520
1976-01-01	6.3630
1976-02-01	7.2000
1976-03-01	7.6330
1976-04-01	7.5350
1976-05-01	7.5380
1976-06-01	7.6270
1976-07-01	8.2880
1976-08-01	9.4150
1976-09-01	9.2480
1976-10-01	10.7380
1976-11-01	10.6750
1976-12-01	10.4360
1977-01-01	9.9420
1977-02-01	9.8300
1977-03-01	9.7340
1977-04-01	9.2230
1977-05-01	9.0710
1977-06-01	8.9210
1977-07-01	8.6730
1977-08-01	8.5160
1977-09-01	8.2980
1977-10-01	8.3570
1977-11-01	8.9710
1977-12-01	9.2980
1978-01-01	8.8790
1978-02-01	10.1790
1978-03-01	9.9600
1978-04-01	8.4750
1978-05-01	8.0760
1978-06-01	7.7630
1978-07-01	7.4280
1978-08-01	7.2500
1978-09-01	7.2000
1978-10-01	6.9880
1978-11-01	6.8880
1978-12-01	6.6690
1979-01-01	6.6430
1979-02-01	6.6830
1979-03-01	6.7700
1979-04-01	6.8210
1979-05-01	7.2020
1979-06-01	8.0130
1979-07-01	9.3390
1979-08-01	10.4420
1979-09-01	10.9960
1979-10-01	11.4720
1979-11-01	11.9500
1979-12-01	12.1730
1980-01-01	11.9900
1980-02-01	12.1750
1980-03-01	12.9580
1980-04-01	12.4020
1980-05-01	12.6150
1980-06-01	12.4270
1980-07-01	12.0440
1980-08-01	11.3210
1980-09-01	11.3730
1980-10-01	11.2210
1980-11-01	10.7380
1980-12-01	10.8750
1981-01-01	10.7360
1981-02-01	10.9130
1981-03-01	11.7180
1981-04-01	12.2330
1981-05-01	16.0280
1981-06-01	19.9330
1981-07-01	18.4920
1981-08-01	17.5040
1981-09-01	17.7750
1981-10-01	17.0930
1981-11-01	15.7210
1981-12-01	15.4640
1982-01-01	15.2480
1982-02-01	14.5640
1982-03-01	15.7160
1982-04-01	16.8080
1982-05-01	16.4070
1982-06-01	15.9750
1982-07-01	15.0520
1982-08-01	14.5810
1982-09-01	14.1130
1982-10-01	13.9110
1982-11-01	13.1830
1982-12-01	12.8790
1983-01-01	12.7100
1983-02-01	12.7720
1983-03-01	12.8390
1983-04-01	12.5500
1983-05-01	12.4640
1983-06-01	12.6080
1983-07-01	12.3950
1983-08-01	12.5360
1983-09-01	12.5670
1983-10-01	12.3530
1983-11-01	12.3710
1983-12-01	12.2700
1984-01-01	12.3950
1984-02-01	12.3060
1984-03-01	12.4820
1984-04-01	12.1540
1984-05-01	12.0400
1984-06-01	12.1150
1984-07-01	11.4480
1984-08-01	11.4310
1984-09-01	11.3620
1984-10-01	11.0380
1984-11-01	11.1850
1984-12-01	10.9520
1985-01-01	10.5600
1985-02-01	10.6460
1985-03-01	10.6710
1985-04-01	10.4880
1985-05-01	10.1730
1985-06-01	10.2260
1985-07-01	9.8860
1985-08-01	9.6880
1985-09-01	9.5750
1985-10-01	9.3448
1985-11-01	8.9844
1985-12-01	9.0161
1986-01-01	8.8387
1986-02-01	8.7768
1986-03-01	8.5222
1986-04-01	8.1875
1986-05-01	7.5040
1986-06-01	7.2458
1986-07-01	7.2802
1986-08-01	7.0544
1986-09-01	7.0854
1986-10-01	7.3165
1986-11-01	7.2854
1986-12-01	7.8044
1987-01-01	8.8972
1987-02-01	8.3638
1987-03-01	7.8871
1987-04-01	7.9104
1987-05-01	8.0222
1987-06-01	8.0104
1987-07-01	7.4556
1987-08-01	7.4052
1987-09-01	7.3604
1987-10-01	7.6935
1987-11-01	8.6688
1987-12-01	8.0343
1988-01-01	7.8024
1988-02-01	7.2629
1988-03-01	7.5383
1988-04-01	7.5521
1988-05-01	7.3427
1988-06-01	7.1104
1988-07-01	7.1895
1988-08-01	7.3831
1988-09-01	7.5229
1988-10-01	7.5726
1988-11-01	7.8167
1988-12-01	8.2016
1989-01-01	8.4556
1989-02-01	8.6987
1989-03-01	8.4476
1989-04-01	8.3125
1989-05-01	8.5121
1989-06-01	8.9292
1989-07-01	9.1935
1989-08-01	9.0484
1989-09-01	8.9375
1989-10-01	9.8468
1989-11-01	9.9875
1989-12-01	10.4819
1990-01-01	10.6673
1990-02-01	10.4263
1990-03-01	10.1935
1990-04-01	9.8875
1990-05-01	9.7520
1990-06-01	9.8438
1990-07-01	10.0585
1990-08-01	9.7581
1990-09-01	9.7917
1990-10-01	9.7077
1990-11-01	9.6625
1990-12-01	9.7157
1991-01-01	9.9577
1991-02-01	9.3996
1991-03-01	9.3669
1991-04-01	9.3438
1991-05-01	9.3992
1991-06-01	9.8938
1991-07-01	9.4899
1991-08-01	9.1573
1991-09-01	9.2063
1991-10-01	8.9980
1991-11-01	9.6021
1991-12-01	10.0726
1992-01-01	10.0484
1992-02-01	9.9203
1992-03-01	9.9315
1992-04-01	9.8958
1992-05-01	9.8770
1992-06-01	9.9417
1992-07-01	9.9919
1992-08-01	9.9698
1992-09-01	13.5292
1992-10-01	11.5343
1992-11-01	9.5313
1992-12-01	10.0484
1993-01-01	12.0141
1993-02-01	11.4554
1993-03-01	11.0141
1993-04-01	9.6104
1993-05-01	8.1512
1993-06-01	7.6813
1993-07-01	8.2661
1993-08-01	8.9819
1993-09-01	7.3229
1993-10-01	7.0161
1993-11-01	6.8458
1993-12-01	6.6310
1994-01-01	6.5000
1994-02-01	6.3929
1994-03-01	6.2964
1994-04-01	6.0625
1994-05-01	5.7540
1994-06-01	5.4354
1994-07-01	5.3548
1994-08-01	5.3125
1994-09-01	5.3125
1994-10-01	5.3125
1994-11-01	5.3125
1994-12-01	5.3226
1995-01-01	5.3488
1995-02-01	5.3415
1995-03-01	7.4435
1995-04-01	7.6625
1995-05-01	7.6290
1995-06-01	7.3708
1995-07-01	6.7883
1995-08-01	6.0685
1995-09-01	5.6188
1995-10-01	6.2863
1995-11-01	5.6750
1995-12-01	5.0081
1996-01-01	4.5282
1996-02-01	4.1961
1996-03-01	4.0444
1996-04-01	3.8792
1996-05-01	3.7500
1996-06-01	3.7438
1996-07-01	3.6169
1996-08-01	3.5444
1996-09-01	3.4771
1996-10-01	3.3649
1996-11-01	3.3125
1996-12-01	3.2863
1997-01-01	3.2762
1997-02-01	3.1964
1997-03-01	3.1875
1997-04-01	3.1875
1997-05-01	3.1875
1997-06-01	3.1896
1997-07-01	3.1875
1997-08-01	3.1875
1997-09-01	3.1875
1997-10-01	3.3226
1997-11-01	3.3750
1997-12-01	3.3750
1998-01-01	3.3750
1998-02-01	3.3750
1998-03-01	3.3750
1998-04-01	3.3750
1998-05-01	3.3750
1998-06-01	3.3771
1998-07-01	3.3750
1998-08-01	3.3750
1998-09-01	3.3750
1998-10-01	3.3750
1998-11-01	3.3750
1998-12-01	3.0927
1999-01-01	3.1370
1999-02-01	3.1180
1999-03-01	2.9252
1999-04-01	2.7091
1999-05-01	2.5510
1999-06-01	2.5632
1999-07-01	2.5209
1999-08-01	2.4427
1999-09-01	2.4336
1999-10-01	2.5019
1999-11-01	2.9355
1999-12-01	3.0418
2000-01-01	3.0429
2000-02-01	3.2757
2000-03-01	3.5104
2000-04-01	3.6850
2000-05-01	3.9200
2000-06-01	4.2945
2000-07-01	4.3086
2000-08-01	4.4191
2000-09-01	4.5905
2000-10-01	4.7627
2000-11-01	4.8291
2000-12-01	4.8268
2001-01-01	4.7559
2001-02-01	4.9925
2001-03-01	4.7814
2001-04-01	5.0642
2001-05-01	4.6536
2001-06-01	4.5395
2001-07-01	4.5055
2001-08-01	4.4913
2001-09-01	3.9865
2001-10-01	3.9713
2001-11-01	3.5073
2001-12-01	3.3389
2002-01-01	3.2936
2002-02-01	3.2830
2002-03-01	3.2640
2002-04-01	3.3162
2002-05-01	3.3100
2002-06-01	3.3485
2002-07-01	3.3017
2002-08-01	3.2927
2002-09-01	3.3186
2002-10-01	3.3004
2002-11-01	3.3043
2002-12-01	3.0945
2003-01-01	2.7868
2003-02-01	2.7635
2003-03-01	2.7490
2003-04-01	2.5605
2003-05-01	2.5571
2003-06-01	2.2133
2003-07-01	2.0783
2003-08-01	2.0981
2003-09-01	2.0209
2003-10-01	2.0148
2003-11-01	1.9730
2003-12-01	2.0567
2004-01-01	2.0214
2004-02-01	2.0315
2004-03-01	2.0057
2004-04-01	2.0780
2004-05-01	2.0152
2004-06-01	2.0277
2004-07-01	2.0677
2004-08-01	2.0405
2004-09-01	2.0518
2004-10-01	2.1114
2004-11-01	2.0850
2004-12-01	2.0535
2005-01-01	2.0771
2005-02-01	2.0585
2005-03-01	2.0567
2005-04-01	2.0757
2005-05-01	2.0700
2005-06-01	2.0623
2005-07-01	2.0729
2005-08-01	2.0609
2005-09-01	2.0941
2005-10-01	2.0671
2005-11-01	2.0859
2005-12-01	2.2757
2006-01-01	2.3264
2006-02-01	2.3495
2006-03-01	2.5200
2006-04-01	2.6283
2006-05-01	2.5768
2006-06-01	2.6977
2006-07-01	2.8138
2006-08-01	2.9683
2006-09-01	3.0410
2006-10-01	3.2782
2006-11-01	3.3277
2006-12-01	3.5011
2007-01-01	3.5632
2007-02-01	3.5695
2007-03-01	3.6909
2007-04-01	3.8195
2007-05-01	3.7905
2007-06-01	3.9557
2007-07-01	4.0632
2007-08-01	4.0474
2007-09-01	4.0286
2007-10-01	3.9414
2007-11-01	4.0221
2007-12-01	3.8791
2008-01-01	4.0218
2008-02-01	4.0279
2008-03-01	4.0910
2008-04-01	3.9868
2008-05-01	4.0097
2008-06-01	4.0067
2008-07-01	4.1908
2008-08-01	4.2989
2008-09-01	4.2733
2008-10-01	3.8198
2008-11-01	3.1502
2008-12-01	2.4864
2009-01-01	1.8122
2009-02-01	1.2571
2009-03-01	1.0620
2009-04-01	0.8419
2009-05-01	0.7821
2009-06-01	0.6980
2009-07-01	0.3576
2009-08-01	0.3475
2009-09-01	0.3632
2009-10-01	0.3587
2009-11-01	0.3624
2009-12-01	0.3546
2010-01-01	0.3440
2010-02-01	0.3406
2010-03-01	0.3477
2010-04-01	0.3533
2010-05-01	0.3439
2010-06-01	0.3543
2010-07-01	0.4811
2010-08-01	0.4256
2010-09-01	0.4536
2010-10-01	0.7013
2010-11-01	0.5926
2010-12-01	0.4981
2011-01-01	0.6590
2011-02-01	0.7071
2011-03-01	0.6587
2011-04-01	0.9661
2011-05-01	1.0334
2011-06-01	1.1240
2011-07-01	1.0118
2011-08-01	0.9058
2011-09-01	1.0055
2011-10-01	0.9596
2011-11-01	0.7900
2011-12-01	0.6270
2012-01-01	0.3800
2012-02-01	0.3656
2012-03-01	0.3567
2012-04-01	0.3451
2012-05-01	0.3370
2012-06-01	0.3320
2012-07-01	0.1842
2012-08-01	0.1101
2012-09-01	0.0993
2012-10-01	0.0907
2012-11-01	0.0785
2012-12-01	0.0734
2013-01-01	0.0690
2013-02-01	0.0677
2013-03-01	0.0670
2013-04-01	0.0810
2013-05-01	0.0787
2013-06-01	0.0862
2013-07-01	0.0931
2013-08-01	0.0820
2013-09-01	0.0803
2013-10-01	0.0933
2013-11-01	0.1031
2013-12-01	0.1686
2014-01-01	0.1961
2014-02-01	0.1567
2014-03-01	0.1919
2014-04-01	0.2539
2014-05-01	0.2480
2014-06-01	0.0758
2014-07-01	0.0433
2014-08-01	0.0179
2014-09-01	0.0066
2014-10-01	-0.0045
2014-11-01	-0.0116
2014-12-01	-0.0301
2015-01-01	-0.0506
2015-02-01	-0.0360
2015-03-01	-0.0504
2015-04-01	-0.0745
2015-05-01	-0.1058
2015-06-01	-0.1185
2015-07-01	-0.1177
2015-08-01	-0.1213
2015-09-01	-0.1357
2015-10-01	-0.1389
2015-11-01	-0.1347
2015-12-01	-0.1990
2016-01-01	-0.2387
2016-02-01	-0.2404
2016-03-01	-0.2877
2016-04-01	-0.3378
2016-05-01	-0.3380
2016-06-01	-0.3325
2016-07-01	-0.3288
2016-08-01	-0.3388
2016-09-01	-0.3430
2016-10-01	-0.3466
2016-11-01	-0.3487
2016-12-01	-0.3504
2017-01-01	-0.3515
2017-02-01	-0.3528
2017-03-01	-0.3535
2017-04-01	-0.3569
2017-05-01	-0.3589
2017-06-01	-0.3587
2017-07-01	-0.3595
2017-08-01	-0.3558
2017-09-01	-0.3581
2017-10-01	-0.3590
2017-11-01	-0.3492
2017-12-01	-0.3423
2018-01-01	-0.3624
2018-02-01	-0.3647
2018-03-01	-0.3639
2018-04-01	-0.3657
2018-05-01	-0.3625
2018-06-01	-0.3618
2018-07-01	-0.3636
2018-08-01	-0.3591
2018-09-01	-0.3627
2018-10-01	-0.3660