Quarterly US dollars
1986-09-30 7353
1986-12-31 8813
1987-03-31 8066
1987-06-30 7990
1987-09-30 7983
1987-12-31 8888
1988-03-31 8772
1988-06-30 8132
1988-09-30 8494
1988-12-31 7783
1989-03-31 7957
1989-06-30 7597
1989-09-30 8110
1989-12-31 9014
1990-03-31 9232
1990-06-30 8563
1990-09-30 9545
1990-12-31 8513
1991-03-31 8360
1991-06-30 7684
1991-09-30 8899
1991-12-31 7095
1992-03-31 7323
1992-06-30 8528
1992-09-30 8753
1992-12-31 6501
1993-03-31 6990
1993-06-30 6436
1993-09-30 7153
1993-12-31 6608
1994-03-31 7925
1994-06-30 7713
1994-09-30 8313
1994-12-31 8804
1995-03-31 9573
1995-06-30 9221
1995-09-30 9653
1995-12-31 9356
1996-03-31 10022
1996-06-30 9329
1996-09-30 10379
1996-12-31 10048
1997-03-31 11136
1997-06-30 11626
1997-09-30 12442
1997-12-31 11527
1998-03-31 14467
1998-06-30 14227
1998-09-30 15703
1998-12-31 13240
1999-03-31 15003
1999-06-30 14254
1999-09-30 14984
1999-12-31 13875
2000-03-31 15439
2000-06-30 15849
2000-09-30 15448
2000-12-31 13724
2001-03-31 15525
2001-06-30 14354
2001-09-30 16160
2001-12-31 12834
2002-03-31 14227
2002-06-30 14587
2002-09-30 15459
2002-12-31 15740
2003-03-31 18177
2003-06-30 21386
2003-09-30 16882
2003-12-31 18325
2004-03-31 22279
2004-06-30 20571
2004-09-30 19210
2004-12-31 19723
2005-03-31 21580
2005-06-30 19774
2005-09-30 22221
2005-12-31 19853
2006-03-31 21990
2006-06-30 22103
2006-09-30 21422
2006-12-31 22258
2007-03-31 24411
2007-06-30 25740
2007-09-30 27705
2007-12-31 23883
2008-03-31 21390
2008-06-30 20640
2008-09-30 16694
2008-12-31 18649
2009-03-31 18845
2009-06-30 17594
2009-09-30 16353
2009-12-31 13684
2010-03-31 14974
2010-06-30 17384
2010-09-30 20316
2010-12-31 13740
2011-03-31 17399
2011-06-30 15841
2011-09-30 18241
2011-12-31 17089
2012-03-31 19456
2012-06-30 19386
2012-09-30 21064
2012-12-31 17916
2013-03-31 19272
2013-06-30 19232
2013-09-30 18094
2013-12-31 16415
2014-03-31 20237
2014-06-30 22080
2014-09-30 17145
2014-12-31 15003
2015-03-31 15601
2015-06-30 15925
2015-09-30 16564
2015-12-31 16349
2016-03-31 15114
2016-06-30 19404
2016-09-30 20337
2016-12-31 15802
2017-03-31 16822
2017-06-30 19564
2017-09-30 19910
2017-12-31 17243
2018-03-31 19998
2018-06-30 15257
2018-09-30 12129
2018-12-31 10298
2019-03-31 10622
2019-06-30 11354
2019-09-30 9036
2019-12-31 8931
2020-03-31 9405
2020-06-30 9978
2020-09-30 14024
2020-12-31 10990
2021-03-31 9728
2021-06-30 9551
2021-09-30 9483
2021-12-31 7776
2022-03-31 8484
2022-06-30 8480
2022-09-30 7486
2022-12-31 6284
2023-03-31 6723
2023-06-30 5982
2023-09-30 7065