Quarterly US dollars
1986-09-30 4205
1986-12-31 3857
1987-03-31 3886
1987-06-30 4051
1987-09-30 4140
1987-12-31 4242
1988-03-31 3839
1988-06-30 3715
1988-09-30 3463
1988-12-31 3534
1989-03-31 3644
1989-06-30 3812
1989-09-30 3879
1989-12-31 3800
1990-03-31 3940
1990-06-30 4612
1990-09-30 4211
1990-12-31 3986
1991-03-31 3717
1991-06-30 3717
1991-09-30 3973
1991-12-31 4148
1992-03-31 3858
1992-06-30 4172
1992-09-30 4176
1992-12-31 3700
1993-03-31 3910
1993-06-30 4170
1993-09-30 4027
1993-12-31 4266
1994-03-31 4302
1994-06-30 4471
1994-09-30 5445
1994-12-31 5004
1995-03-31 6137
1995-06-30 6088
1995-09-30 6233
1995-12-31 6932
1996-03-31 7478
1996-06-30 8161
1996-09-30 7571
1996-12-31 7359
1997-03-31 7416
1997-06-30 7891
1997-09-30 7315
1997-12-31 7049
1998-03-31 8894
1998-06-30 9905
1998-09-30 9139
1998-12-31 12172
1999-03-31 11496
1999-06-30 10357
1999-09-30 11474
1999-12-31 12420
2000-03-31 11763
2000-06-30 13383
2000-09-30 12506
2000-12-31 15121
2001-03-31 14756
2001-06-30 15134
2001-09-30 16766
2001-12-31 19096
2002-03-31 18879
2002-06-30 21855
2002-09-30 21135
2002-12-31 24144
2003-03-31 24418
2003-06-30 27421
2003-09-30 30152
2003-12-31 32558
2004-03-31 31725
2004-06-30 30221
2004-09-30 28356
2004-12-31 30940
2005-03-31 29151
2005-06-30 29399
2005-09-30 28709
2005-12-31 29141
2006-03-31 27434
2006-06-30 29764
2006-09-30 31018
2006-12-31 31292
2007-03-31 27812
2007-06-30 29770
2007-09-30 32978
2007-12-31 33785
2008-03-31 39146
2008-06-30 43126
2008-09-30 35922
2008-12-31 27828
2009-03-31 29638
2009-06-30 28421
2009-09-30 31801
2009-12-31 42322
2010-03-31 43069
2010-06-30 37247
2010-09-30 43365
2010-12-31 36723
2011-03-31 42791
2011-06-30 46758
2011-09-30 45045
2011-12-31 41409
2012-03-31 43509
2012-06-30 44636
2012-09-30 43164
2012-12-31 43015
2013-03-31 40954
2013-06-30 41004
2013-09-30 26889
2013-12-31 28958
2014-03-31 28685
2014-06-30 28253
2014-09-30 24949
2014-12-31 24982
2015-03-31 21868
2015-06-30 21884
2015-09-30 14938
2015-12-31 14022
2016-03-31 15821
2016-06-30 15701
2016-09-30 14606
2016-12-31 11811
2017-03-31 11576
2017-06-30 12188
2017-09-30 10866
2017-12-31 8967
2018-03-31 8803
2018-06-30 7881
2018-09-30 6234
2018-12-31 4963
2019-03-31 3886
2019-06-30 4099
2019-09-30 3668
2019-12-31 3418
2020-03-31 3484
2020-06-30 2803
2020-09-30 2865
2020-12-31 2136
2021-03-31 1515
2021-06-30 1530
2021-09-30 983
2021-12-31 1828
2022-03-31 1322
2022-06-30 1989
2022-09-30 1168
2022-12-31 1749
2023-03-31 1354
2023-06-30 1452
2023-09-30 1087