Quarterly US dollars
1999-03-31 3451
1999-06-30 2712
1999-09-30 2792
1999-12-31 4628
2000-03-31 2156
2000-06-30 3344
2000-09-30 4889
2000-12-31 6832
2001-03-31 4810
2001-06-30 3395
2001-09-30 6013
2001-12-31 4490
2002-03-31 4070
2002-06-30 4695
2002-09-30 7116
2002-12-31 8673
2003-03-31 13441
2003-06-30 14826
2003-09-30 16117
2003-12-31 13276
2004-03-31 10681
2004-06-30 19947
2004-09-30 16561
2004-12-31 17004
2005-03-31 24562
2005-06-30 19537
2005-09-30 32165
2005-12-31 39332
2006-03-31 34479
2006-06-30 47197
2006-09-30 37549
2006-12-31 45367
2007-03-31 48460
2007-06-30 54014
2007-09-30 47839
2007-12-31 53744
2008-03-31 43298
2008-06-30 45189
2008-09-30 37880
2008-12-31 32339
2009-03-31 30590
2009-06-30 16062
2009-09-30 18781
2009-12-31 19883
2010-03-31 22011
2010-06-30 18802
2010-09-30 19888
2010-12-31 21127
2011-03-31 21590
2011-06-30 19807
2011-09-30 20046
2011-12-31 14146
2012-03-31 17985
2012-06-30 18088
2012-09-30 13522
2012-12-31 14276
2013-03-31 18837
2013-06-30 15128
2013-09-30 17583
2013-12-31 14922
2014-03-31 12875
2014-06-30 13976
2014-09-30 10191
2014-12-31 18517
2015-03-31 13558
2015-06-30 21896
2015-09-30 21518
2015-12-31 19996
2016-03-31 19250
2016-06-30 20479
2016-09-30 21104
2016-12-31 20546
2017-03-31 26299
2017-06-30 22823
2017-09-30 25402
2017-12-31 31499
2018-03-31 27894
2018-06-30 23008
2018-09-30 22175
2018-12-31 26065
2019-03-31 24323
2019-06-30 23313
2019-09-30 22415
2019-12-31 25962
2020-03-31 27932
2020-06-30 27568
2020-09-30 22994
2020-12-31 23229
2021-03-31 22429
2021-06-30 21887
2021-09-30 21693
2021-12-31 25088
2022-03-31 24496
2022-06-30 22563
2022-09-30 29043
2022-12-31 30485
2023-03-31 30649
2023-06-30 28048
2023-09-30 30781