Quarterly US dollars
1999-03-31 3421
1999-06-30 4130
1999-09-30 5584
1999-12-31 5146
2000-03-31 7216
2000-06-30 6347
2000-09-30 8086
2000-12-31 6663
2001-03-31 7936
2001-06-30 8443
2001-09-30 9851
2001-12-31 9113
2002-03-31 8773
2002-06-30 8923
2002-09-30 10689
2002-12-31 9817
2003-03-31 8333
2003-06-30 8999
2003-09-30 8862
2003-12-31 9326
2004-03-31 10068
2004-06-30 11246
2004-09-30 12609
2004-12-31 13357
2005-03-31 15734
2005-06-30 16809
2005-09-30 18936
2005-12-31 18588
2006-03-31 18553
2006-06-30 19907
2006-09-30 20724
2006-12-31 24989
2007-03-31 25970
2007-06-30 33053
2007-09-30 32631
2007-12-31 35355
2008-03-31 32934
2008-06-30 31314
2008-09-30 27422
2008-12-31 22804
2009-03-31 22359
2009-06-30 24434
2009-09-30 26951
2009-12-31 27336
2010-03-31 35782
2010-06-30 32297
2010-09-30 37101
2010-12-31 36822
2011-03-31 39891
2011-06-30 39591
2011-09-30 32496
2011-12-31 29184
2012-03-31 26853
2012-06-30 22334
2012-09-30 20024
2012-12-31 18784
2013-03-31 19512
2013-06-30 20732
2013-09-30 23413
2013-12-31 23343
2014-03-31 19971
2014-06-30 21672
2014-09-30 20298
2014-12-31 19372
2015-03-31 18555
2015-06-30 19318
2015-09-30 17816
2015-12-31 17386
2016-03-31 19183
2016-06-30 19206
2016-09-30 18947
2016-12-31 17495
2017-03-31 19869
2017-06-30 16869
2017-09-30 16840
2017-12-31 17548
2018-03-31 20764
2018-06-30 23100
2018-09-30 19474
2018-12-31 18890
2019-03-31 19710
2019-06-30 20537
2019-09-30 19281
2019-12-31 22105
2020-03-31 22109
2020-06-30 23445
2020-09-30 22807
2020-12-31 36057
2021-03-31 37599
2021-06-30 35136
2021-09-30 31794
2021-12-31 35982
2022-03-31 41107
2022-06-30 32074
2022-09-30 27917
2022-12-31 30894
2023-03-31 29233
2023-06-30 30788
2023-09-30 24407