Quarter	US dollars
1986-09-30	83838
1986-12-31	85457
1987-03-31	90962
1987-06-30	91254
1987-09-30	90096
1987-12-31	104976
1988-03-31	106257
1988-06-30	101526
1988-09-30	99975
1988-12-31	103304
1989-03-31	105269
1989-06-30	108144
1989-09-30	110559
1989-12-31	115431
1990-03-31	121727
1990-06-30	128352
1990-09-30	137685
1990-12-31	139972
1991-03-31	130086
1991-06-30	121811
1991-09-30	122017
1991-12-31	121947
1992-03-31	121054
1992-06-30	122068
1992-09-30	129782
1992-12-31	118225
1993-03-31	117767
1993-06-30	110005
1993-09-30	106325
1993-12-31	111997
1994-03-31	115028
1994-06-30	129173
1994-09-30	140549
1994-12-31	142855
1995-03-31	120342
1995-06-30	119182
1995-09-30	111276
1995-12-31	117665
1996-03-31	121585
1996-06-30	132056
1996-09-30	133687
1996-12-31	143256
1997-03-31	145296
1997-06-30	148414
1997-09-30	146734
1997-12-31	174464
1998-03-31	161661
1998-06-30	166230
1998-09-30	193048
1998-12-31	193654
1999-03-31	165236
1999-06-30	156761
1999-09-30	192061
1999-12-31	214123
2000-03-31	223428
2000-06-30	214978
2000-09-30	209245
2000-12-31	249173
2001-03-31	243214
2001-06-30	209578
2001-09-30	221788
2001-12-31	224036
2002-03-31	213954
2002-06-30	239550
2002-09-30	240860
2002-12-31	267692
2003-03-31	285655
2003-06-30	302677
2003-09-30	291662
2003-12-31	325614
2004-03-31	327928
2004-06-30	342563
2004-09-30	289020
2004-12-31	321372
2005-03-31	339801
2005-06-30	346285
2005-09-30	336053
2005-12-31	301560
2006-03-31	335125
2006-06-30	353241
2006-09-30	326838
2006-12-31	264772
2007-03-31	417694
2007-06-30	378359
2007-09-30	385313
2007-12-31	501225
2008-03-31	510850
2008-06-30	343661
2008-09-30	329864
2008-12-31	242480
2009-03-31	251233
2009-06-30	257092
2009-09-30	272316
2009-12-31	232198
2010-03-31	230703
2010-06-30	228388
2010-09-30	233837
2010-12-31	263617
2011-03-31	218878
2011-06-30	227544
2011-09-30	235325
2011-12-31	241462
2012-03-31	219974
2012-06-30	203524
2012-09-30	208885
2012-12-31	221379
2013-03-31	218047
2013-06-30	233698
2013-09-30	259174
2013-12-31	258550
2014-03-31	256434
2014-06-30	284443
2014-09-30	244422
2014-12-31	238222
2015-03-31	215711
2015-06-30	217896
2015-09-30	211783
2015-12-31	210288
2016-03-31	150721
2016-06-30	173210
2016-09-30	170327
2016-12-31	180326
2017-03-31	166224
2017-06-30	204621
2017-09-30	191927
2017-12-31	189731
2018-03-31	169128
2018-06-30	173437
2018-09-30	157886
2018-12-31	171268
2019-03-31	163316
2019-06-30	166899
2019-09-30	154952
2019-12-31	157944
2020-03-31	147843
2020-06-30	151135
2020-09-30	164984
2020-12-31	178404
2021-03-31	201896
2021-06-30	181272
2021-09-30	195010
2021-12-31	203733
2022-03-31	205086
2022-06-30	214471
2022-09-30	189084
2022-12-31	226248
2023-03-31	275675
2023-06-30	249064
2023-09-30	245480