Quarterly US dollars
1986-09-30 7324
1986-12-31 8122
1987-03-31 7718
1987-06-30 8291
1987-09-30 7199
1987-12-31 7968
1988-03-31 8042
1988-06-30 8154
1988-09-30 7914
1988-12-31 7750
1989-03-31 7889
1989-06-30 7895
1989-09-30 8125
1989-12-31 8049
1990-03-31 8085
1990-06-30 7494
1990-09-30 7918
1990-12-31 7695
1991-03-31 7567
1991-06-30 6728
1991-09-30 7219
1991-12-31 6553
1992-03-31 6633
1992-06-30 6861
1992-09-30 5993
1992-12-31 6066
1993-03-31 5093
1993-06-30 5237
1993-09-30 5620
1993-12-31 6409
1994-03-31 5949
1994-06-30 6030
1994-09-30 5244
1994-12-31 5673
1995-03-31 4181
1995-06-30 3862
1995-09-30 3872
1995-12-31 6544
1996-03-31 6493
1996-06-30 7061
1996-09-30 6756
1996-12-31 7438
1997-03-31 5904
1997-06-30 7297
1997-09-30 8424
1997-12-31 7772
1998-03-31 5608
1998-06-30 7925
1998-09-30 16048
1998-12-31 5908
1999-03-31 6104
1999-06-30 7478
1999-09-30 6610
1999-12-31 7564
2000-03-31 9107
2000-06-30 5792
2000-09-30 7410
2000-12-31 5449
2001-03-31 5582
2001-06-30 6358
2001-09-30 7012
2001-12-31 7710
2002-03-31 8061
2002-06-30 7427
2002-09-30 7985
2002-12-31 8484
2003-03-31 9302
2003-06-30 9981
2003-09-30 12433
2003-12-31 13680
2004-03-31 14373
2004-06-30 14817
2004-09-30 13859
2004-12-31 15592
2005-03-31 14342
2005-06-30 21417
2005-09-30 18614
2005-12-31 17589
2006-03-31 17550
2006-06-30 19776
2006-09-30 23419
2006-12-31 27952
2007-03-31 26991
2007-06-30 26162
2007-09-30 31275
2007-12-31 42413
2008-03-31 43560
2008-06-30 34120
2008-09-30 35412
2008-12-31 17395
2009-03-31 14896
2009-06-30 16932
2009-09-30 15805
2009-12-31 20610
2010-03-31 18550
2010-06-30 17163
2010-09-30 18241
2010-12-31 17082
2011-03-31 19633
2011-06-30 20609
2011-09-30 18030
2011-12-31 17883
2012-03-31 16649
2012-06-30 15042
2012-09-30 15520
2012-12-31 15639
2013-03-31 17350
2013-06-30 17698
2013-09-30 16973
2013-12-31 17542
2014-03-31 19843
2014-06-30 17569
2014-09-30 13445
2014-12-31 16206
2015-03-31 14535
2015-06-30 14990
2015-09-30 16351
2015-12-31 13249
2016-03-31 13675
2016-06-30 15076
2016-09-30 15192
2016-12-31 14928
2017-03-31 15189
2017-06-30 14827
2017-09-30 14280
2017-12-31 14361
2018-03-31 16450
2018-06-30 15603
2018-09-30 13111
2018-12-31 17030
2019-03-31 13271
2019-06-30 15711
2019-09-30 13182
2019-12-31 13358
2020-03-31 13077
2020-06-30 11500
2020-09-30 10695
2020-12-31 11806
2021-03-31 11548
2021-06-30 25256
2021-09-30 25520
2021-12-31 25462
2022-03-31 26891
2022-06-30 26359
2022-09-30 23912
2022-12-31 23927
2023-03-31 22213
2023-06-30 24001
2023-09-30 24099