Quarterly US dollars
1999-03-31 1308
1999-06-30 1120
1999-09-30 1458
1999-12-31 1296
2000-03-31 1581
2000-06-30 1530
2000-09-30 2058
2000-12-31 2750
2001-03-31 4068
2001-06-30 3680
2001-09-30 4730
2001-12-31 4126
2002-03-31 4115
2002-06-30 4325
2002-09-30 4209
2002-12-31 4558
2003-03-31 4854
2003-06-30 5541
2003-09-30 5797
2003-12-31 4692
2004-03-31 2556
2004-06-30 2934
2004-09-30 2959
2004-12-31 3351
2005-03-31 2692
2005-06-30 3090
2005-09-30 3112
2005-12-31 4176
2006-03-31 3700
2006-06-30 4820
2006-09-30 4662
2006-12-31 4672
2007-03-31 6040
2007-06-30 7045
2007-09-30 6919
2007-12-31 7331
2008-03-31 12243
2008-06-30 10222
2008-09-30 8329
2008-12-31 7368
2009-03-31 7886
2009-06-30 7487
2009-09-30 8619
2009-12-31 12647
2010-03-31 10886
2010-06-30 6973
2010-09-30 8782
2010-12-31 8874
2011-03-31 12364
2011-06-30 12661
2011-09-30 10300
2011-12-31 8887
2012-03-31 8668
2012-06-30 8618
2012-09-30 13415
2012-12-31 12735
2013-03-31 13451
2013-06-30 12145
2013-09-30 11443
2013-12-31 14566
2014-03-31 15814
2014-06-30 19897
2014-09-30 17838
2014-12-31 19018
2015-03-31 20998
2015-06-30 21348
2015-09-30 20654
2015-12-31 16868
2016-03-31 16810
2016-06-30 18089
2016-09-30 18809
2016-12-31 19374
2017-03-31 17964
2017-06-30 17989
2017-09-30 19661
2017-12-31 22437
2018-03-31 24555
2018-06-30 22557
2018-09-30 22698
2018-12-31 25387
2019-03-31 27322
2019-06-30 26108
2019-09-30 22222
2019-12-31 26641
2020-03-31 31693
2020-06-30 31010
2020-09-30 28660
2020-12-31 31248
2021-03-31 32241
2021-06-30 33174
2021-09-30 35472
2021-12-31 33294
2022-03-31 38380
2022-06-30 34203
2022-09-30 35389
2022-12-31 32006
2023-03-31 32647
2023-06-30 31518
2023-09-30 27214