Quarterly US dollars
1999-03-31 50733
1999-06-30 60433
1999-09-30 60647
1999-12-31 59517
2000-03-31 63836
2000-06-30 65874
2000-09-30 61410
2000-12-31 65618
2001-03-31 62773
2001-06-30 63438
2001-09-30 61399
2001-12-31 55590
2002-03-31 54241
2002-06-30 66581
2002-09-30 67504
2002-12-31 72014
2003-03-31 74997
2003-06-30 79170
2003-09-30 77920
2003-12-31 70042
2004-03-31 67069
2004-06-30 68051
2004-09-30 65397
2004-12-31 64162
2005-03-31 58145
2005-06-30 67268
2005-09-30 58376
2005-12-31 48858
2006-03-31 55897
2006-06-30 49273
2006-09-30 44168
2006-12-31 54111
2007-03-31 49351
2007-06-30 55477
2007-09-30 57011
2007-12-31 49958
2008-03-31 54651
2008-06-30 49801
2008-09-30 50921
2008-12-31 43461
2009-03-31 48151
2009-06-30 49031
2009-09-30 52724
2009-12-31 48524
2010-03-31 42541
2010-06-30 41494
2010-09-30 39569
2010-12-31 39274
2011-03-31 46599
2011-06-30 57786
2011-09-30 36688
2011-12-31 32996
2012-03-31 33078
2012-06-30 31666
2012-09-30 31124
2012-12-31 33077
2013-03-31 27955
2013-06-30 27766
2013-09-30 26695
2013-12-31 25584
2014-03-31 30391
2014-06-30 30992
2014-09-30 30377
2014-12-31 26919
2015-03-31 27015
2015-06-30 16277
2015-09-30 23457
2015-12-31 24162
2016-03-31 27531
2016-06-30 17423
2016-09-30 11909
2016-12-31 10992
2017-03-31 10525
2017-06-30 13980
2017-09-30 14775
2017-12-31 11698
2018-03-31 15739
2018-06-30 14453
2018-09-30 14440
2018-12-31 15468
2019-03-31 19650
2019-06-30 19923
2019-09-30 19981
2019-12-31 18644
2020-03-31 21672
2020-06-30 20937
2020-09-30 20623
2020-12-31 20694
2021-03-31 17327
2021-06-30 15350
2021-09-30 14926
2021-12-31 13403
2022-03-31 11350
2022-06-30 13614
2022-09-30 12396
2022-12-31 15236
2023-03-31 13561
2023-06-30 13065
2023-09-30 13262