Quarter	US dollars
1986-09-30	2067
1986-12-31	2050
1987-03-31	2022
1987-06-30	2071
1987-09-30	2016
1987-12-31	2080
1988-03-31	2155
1988-06-30	2314
1988-09-30	2569
1988-12-31	2264
1989-03-31	2270
1989-06-30	2258
1989-09-30	2332
1989-12-31	2321
1990-03-31	2274
1990-06-30	2225
1990-09-30	2067
1990-12-31	2216
1991-03-31	2030
1991-06-30	2030
1991-09-30	2166
1991-12-31	2359
1992-03-31	1973
1992-06-30	1928
1992-09-30	1993
1992-12-31	2035
1993-03-31	2063
1993-06-30	2094
1993-09-30	2182
1993-12-31	2298
1994-03-31	2052
1994-06-30	1954
1994-09-30	2305
1994-12-31	2357
1995-03-31	2280
1995-06-30	2071
1995-09-30	2346
1995-12-31	2445
1996-03-31	2103
1996-06-30	2460
1996-09-30	2430
1996-12-31	2356
1997-03-31	2901
1997-06-30	3002
1997-09-30	3021
1997-12-31	3280
1998-03-31	3149
1998-06-30	2949
1998-09-30	2869
1998-12-31	2397
1999-03-31	2473
1999-06-30	2581
1999-09-30	2378
1999-12-31	2607
2000-03-31	2365
2000-06-30	2811
2000-09-30	3163
2000-12-31	2621
2001-03-31	2652
2001-06-30	2851
2001-09-30	2159
2001-12-31	1907
2002-03-31	1967
2002-06-30	1858
2002-09-30	1877
2002-12-31	2950
2003-03-31	3763
2003-06-30	4062
2003-09-30	4075
2003-12-31	4123
2004-03-31	3948
2004-06-30	4108
2004-09-30	3902
2004-12-31	4621
2005-03-31	5065
2005-06-30	4237
2005-09-30	5068
2005-12-31	5231
2006-03-31	5779
2006-06-30	6965
2006-09-30	5834
2006-12-31	5687
2007-03-31	6073
2007-06-30	6269
2007-09-30	6253
2007-12-31	5946
2008-03-31	5898
2008-06-30	5295
2008-09-30	5927
2008-12-31	6205
2009-03-31	5993
2009-06-30	6570
2009-09-30	8102
2009-12-31	9706
2010-03-31	10570
2010-06-30	11349
2010-09-30	11294
2010-12-31	12367
2011-03-31	14201
2011-06-30	13245
2011-09-30	12823
2011-12-31	12953
2012-03-31	11837
2012-06-30	11317
2012-09-30	11295
2012-12-31	11135
2013-03-31	10801
2013-06-30	11340
2013-09-30	10681
2013-12-31	11880
2014-03-31	11639
2014-06-30	12327
2014-09-30	11093
2014-12-31	11000
2015-03-31	11662
2015-06-30	9429
2015-09-30	8810
2015-12-31	8442
2016-03-31	7518
2016-06-30	8962
2016-09-30	9087
2016-12-31	8888
2017-03-31	9414
2017-06-30	9264
2017-09-30	9439
2017-12-31	10690
2018-03-31	10125
2018-06-30	10609
2018-09-30	10660
2018-12-31	9163
2019-03-31	8445
2019-06-30	7603
2019-09-30	7309
2019-12-31	6037
2020-03-31	6361
2020-06-30	6972
2020-09-30	6469
2020-12-31	6585
2021-03-31	5797
2021-06-30	5229
2021-09-30	4494
2021-12-31	3336
2022-03-31	3364
2022-06-30	2316
2022-09-30	2444
2022-12-31	2973
2023-03-31	2952
2023-06-30	1793
2023-09-30	1725