Quarterly US dollars
1999-03-31 6258
1999-06-30 6148
1999-09-30 7490
1999-12-31 7011
2000-03-31 6780
2000-06-30 6480
2000-09-30 6058
2000-12-31 6098
2001-03-31 6326
2001-06-30 6424
2001-09-30 6702
2001-12-31 6954
2002-03-31 7417
2002-06-30 8294
2002-09-30 8257
2002-12-31 7447
2003-03-31 9994
2003-06-30 8268
2003-09-30 9322
2003-12-31 9654
2004-03-31 10982
2004-06-30 10151
2004-09-30 12196
2004-12-31 12344
2005-03-31 12936
2005-06-30 12939
2005-09-30 12927
2005-12-31 15937
2006-03-31 15163
2006-06-30 14024
2006-09-30 15998
2006-12-31 18434
2007-03-31 18366
2007-06-30 19425
2007-09-30 24119
2007-12-31 24290
2008-03-31 21241
2008-06-30 21675
2008-09-30 27534
2008-12-31 19398
2009-03-31 15494
2009-06-30 19482
2009-09-30 15791
2009-12-31 16141
2010-03-31 18628
2010-06-30 22020
2010-09-30 24421
2010-12-31 20044
2011-03-31 26205
2011-06-30 23861
2011-09-30 23639
2011-12-31 33732
2012-03-31 24120
2012-06-30 26078
2012-09-30 24012
2012-12-31 22103
2013-03-31 20687
2013-06-30 20624
2013-09-30 21837
2013-12-31 20636
2014-03-31 20066
2014-06-30 23158
2014-09-30 24543
2014-12-31 22668
2015-03-31 22622
2015-06-30 22403
2015-09-30 28276
2015-12-31 24533
2016-03-31 23889
2016-06-30 21902
2016-09-30 27348
2016-12-31 22843
2017-03-31 28424
2017-06-30 29512
2017-09-30 30964
2017-12-31 28902
2018-03-31 33893
2018-06-30 26170
2018-09-30 28399
2018-12-31 27480
2019-03-31 30144
2019-06-30 32200
2019-09-30 30899
2019-12-31 28058
2020-03-31 34173
2020-06-30 30717
2020-09-30 33537
2020-12-31 31735
2021-03-31 35112
2021-06-30 35700
2021-09-30 35040
2021-12-31 34824
2022-03-31 40057
2022-06-30 37720
2022-09-30 40087
2022-12-31 36950
2023-03-31 37670
2023-06-30 37599
2023-09-30 33096