Quarterly US dollars
1986-09-30 12944
1986-12-31 12107
1987-03-31 12109
1987-06-30 12602
1987-09-30 15098
1987-12-31 14731
1988-03-31 15643
1988-06-30 16133
1988-09-30 15175
1988-12-31 15409
1989-03-31 15562
1989-06-30 16748
1989-09-30 15816
1989-12-31 16649
1990-03-31 16742
1990-06-30 17512
1990-09-30 18153
1990-12-31 18900
1991-03-31 17768
1991-06-30 15695
1991-09-30 17383
1991-12-31 17527
1992-03-31 15545
1992-06-30 14595
1992-09-30 15414
1992-12-31 15911
1993-03-31 16302
1993-06-30 17487
1993-09-30 18172
1993-12-31 15604
1994-03-31 13720
1994-06-30 8457
1994-09-30 8347
1994-12-31 8872
1995-03-31 10301
1995-06-30 6157
1995-09-30 8944
1995-12-31 12168
1996-03-31 11971
1996-06-30 6831
1996-09-30 12392
1996-12-31 6446
1997-03-31 13052
1997-06-30 7998
1997-09-30 6992
1997-12-31 8004
1998-03-31 9417
1998-06-30 13441
1998-09-30 17731
1998-12-31 12559
1999-03-31 14789
1999-06-30 15480
1999-09-30 21182
1999-12-31 4683
2000-03-31 15754
2000-06-30 28471
2000-09-30 27197
2000-12-31 40248
2001-03-31 24598
2001-06-30 23988
2001-09-30 12545
2001-12-31 11528
2002-03-31 26286
2002-06-30 14420
2002-09-30 16331
2002-12-31 14443
2003-03-31 20435
2003-06-30 23275
2003-09-30 24903
2003-12-31 28780
2004-03-31 42185
2004-06-30 38576
2004-09-30 36430
2004-12-31 38765
2005-03-31 35574
2005-06-30 42063
2005-09-30 39002
2005-12-31 41925
2006-03-31 50484
2006-06-30 49329
2006-09-30 43031
2006-12-31 37189
2007-03-31 37742
2007-06-30 26238
2007-09-30 25869
2007-12-31 18312
2008-03-31 22298
2008-06-30 17498
2008-09-30 18093
2008-12-31 19221
2009-03-31 12047
2009-06-30 15104
2009-09-30 15170
2009-12-31 14618
2010-03-31 14302
2010-06-30 10241
2010-09-30 11326
2010-12-31 11430
2011-03-31 8831
2011-06-30 11898
2011-09-30 14098
2011-12-31 13372
2012-03-31 10341
2012-06-30 12479
2012-09-30 15158
2012-12-31 12788
2013-03-31 16625
2013-06-30 13105
2013-09-30 11927
2013-12-31 9961
2014-03-31 9797
2014-06-30 9059
2014-09-30 7649
2014-12-31 11754
2015-03-31 10946
2015-06-30 10742
2015-09-30 12783
2015-12-31 10151
2016-03-31 10653
2016-06-30 8762
2016-09-30 7859
2016-12-31 6957
2017-03-31 9058
2017-06-30 7666
2017-09-30 9879
2017-12-31 8453
2018-03-31 8474
2018-06-30 7673
2018-09-30 7055
2018-12-31 6728
2019-03-31 7583
2019-06-30 7369
2019-09-30 6827
2019-12-31 7695
2020-03-31 8421
2020-06-30 8283
2020-09-30 8523
2020-12-31 8035
2021-03-31 7151
2021-06-30 4942
2021-09-30 5114
2021-12-31 5040
2022-03-31 4476
2022-06-30 4463
2022-09-30 4733
2022-12-31 5040
2023-03-31 5033
2023-06-30 4116
2023-09-30 2724