Quarterly US dollars
1986-09-30 7099
1986-12-31 7224
1987-03-31 7665
1987-06-30 8036
1987-09-30 8320
1987-12-31 8531
1988-03-31 10741
1988-06-30 10217
1988-09-30 10013
1988-12-31 10319
1989-03-31 10532
1989-06-30 11991
1989-09-30 13200
1989-12-31 14937
1990-03-31 16107
1990-06-30 18304
1990-09-30 21617
1990-12-31 19017
1991-03-31 21978
1991-06-30 19044
1991-09-30 20785
1991-12-31 21605
1992-03-31 20784
1992-06-30 22905
1992-09-30 27378
1992-12-31 25306
1993-03-31 23749
1993-06-30 22481
1993-09-30 22656
1993-12-31 19983
1994-03-31 18742
1994-06-30 18590
1994-09-30 18515
1994-12-31 18270
1995-03-31 21577
1995-06-30 22834
1995-09-30 22250
1995-12-31 25480
1996-03-31 25834
1996-06-30 24029
1996-09-30 26653
1996-12-31 23919
1997-03-31 23159
1997-06-30 21227
1997-09-30 22093
1997-12-31 21634
1998-03-31 21682
1998-06-30 22114
1998-09-30 27242
1998-12-31 36144
1999-03-31 30523
1999-06-30 28783
1999-09-30 30353
1999-12-31 27201
2000-03-31 30138
2000-06-30 27426
2000-09-30 24322
2000-12-31 25878
2001-03-31 31844
2001-06-30 27858
2001-09-30 31195
2001-12-31 30758
2002-03-31 32203
2002-06-30 30306
2002-09-30 29691
2002-12-31 28110
2003-03-31 31094
2003-06-30 29275
2003-09-30 29881
2003-12-31 37816
2004-03-31 42192
2004-06-30 38436
2004-09-30 39947
2004-12-31 46606
2005-03-31 42024
2005-06-30 41279
2005-09-30 42257
2005-12-31 40619
2006-03-31 46697
2006-06-30 54995
2006-09-30 46768
2006-12-31 55556
2007-03-31 61374
2007-06-30 62240
2007-09-30 76177
2007-12-31 73718
2008-03-31 72993
2008-06-30 59946
2008-09-30 63165
2008-12-31 50793
2009-03-31 55595
2009-06-30 56729
2009-09-30 58979
2009-12-31 51279
2010-03-31 56589
2010-06-30 56826
2010-09-30 58076
2010-12-31 49489
2011-03-31 53346
2011-06-30 50490
2011-09-30 59816
2011-12-31 51947
2012-03-31 55942
2012-06-30 52918
2012-09-30 56310
2012-12-31 50909
2013-03-31 50676
2013-06-30 50184
2013-09-30 48792
2013-12-31 48278
2014-03-31 46417
2014-06-30 48374
2014-09-30 47475
2014-12-31 46270
2015-03-31 45224
2015-06-30 47617
2015-09-30 47523
2015-12-31 44486
2016-03-31 42801
2016-06-30 43443
2016-09-30 48207
2016-12-31 38803
2017-03-31 36947
2017-06-30 38545
2017-09-30 42530
2017-12-31 41617
2018-03-31 45991
2018-06-30 44074
2018-09-30 40840
2018-12-31 37938
2019-03-31 35511
2019-06-30 38263
2019-09-30 39416
2019-12-31 36427
2020-03-31 37099
2020-06-30 35283
2020-09-30 37500
2020-12-31 41264
2021-03-31 38074
2021-06-30 39624
2021-09-30 42982
2021-12-31 42059
2022-03-31 37917
2022-06-30 34934
2022-09-30 34088
2022-12-31 33400
2023-03-31 38573
2023-06-30 36406
2023-09-30 30907