Quarterly US dollars
1999-03-31 6427
1999-06-30 7406
1999-09-30 7671
1999-12-31 6969
2000-03-31 8644
2000-06-30 8972
2000-09-30 9670
2000-12-31 12187
2001-03-31 11763
2001-06-30 12124
2001-09-30 10699
2001-12-31 10321
2002-03-31 11706
2002-06-30 12952
2002-09-30 12777
2002-12-31 13438
2003-03-31 15872
2003-06-30 17784
2003-09-30 15383
2003-12-31 16018
2004-03-31 17136
2004-06-30 17559
2004-09-30 17363
2004-12-31 18299
2005-03-31 18448
2005-06-30 18480
2005-09-30 17223
2005-12-31 21768
2006-03-31 20487
2006-06-30 20444
2006-09-30 31770
2006-12-31 28880
2007-03-31 31373
2007-06-30 33352
2007-09-30 34005
2007-12-31 38118
2008-03-31 44409
2008-06-30 41183
2008-09-30 42401
2008-12-31 39210
2009-03-31 32613
2009-06-30 35982
2009-09-30 34682
2009-12-31 32475
2010-03-31 33944
2010-06-30 31333
2010-09-30 36441
2010-12-31 38480
2011-03-31 41149
2011-06-30 42308
2011-09-30 35967
2011-12-31 36957
2012-03-31 38072
2012-06-30 38294
2012-09-30 38616
2012-12-31 38464
2013-03-31 35775
2013-06-30 29790
2013-09-30 32295
2013-12-31 32740
2014-03-31 34860
2014-06-30 34474
2014-09-30 31155
2014-12-31 31785
2015-03-31 34528
2015-06-30 31244
2015-09-30 30747
2015-12-31 30613
2016-03-31 30906
2016-06-30 28206
2016-09-30 29674
2016-12-31 29360
2017-03-31 31068
2017-06-30 30065
2017-09-30 29352
2017-12-31 31158
2018-03-31 34825
2018-06-30 28396
2018-09-30 33540
2018-12-31 31635
2019-03-31 31493
2019-06-30 31383
2019-09-30 33614
2019-12-31 32994
2020-03-31 40295
2020-06-30 38289
2020-09-30 40232
2020-12-31 41271
2021-03-31 38451
2021-06-30 39902
2021-09-30 43180
2021-12-31 45366
2022-03-31 46824
2022-06-30 39541
2022-09-30 46525
2022-12-31 39754
2023-03-31 35133
2023-06-30 35212
2023-09-30 39389