Quarterly US dollars
1999-09-30 0
1999-12-31 0
2000-03-31 9028
2000-06-30 9822
2000-09-30 8382
2000-12-31 9102
2001-03-31 9084
2001-06-30 9791
2001-09-30 9450
2001-12-31 10302
2002-03-31 11737
2002-06-30 13149
2002-09-30 14355
2002-12-31 15800
2003-03-31 17134
2003-06-30 18809
2003-09-30 18171
2003-12-31 20515
2004-03-31 20245
2004-06-30 22041
2004-09-30 24651
2004-12-31 26169
2005-03-31 29544
2005-06-30 31717
2005-09-30 31431
2005-12-31 30509
2006-03-31 30245
2006-06-30 30028
2006-09-30 30231
2006-12-31 32149
2007-03-31 30484
2007-06-30 41933
2007-09-30 35507
2007-12-31 40304
2008-03-31 42893
2008-06-30 26555
2008-09-30 58424
2008-12-31 49370
2009-03-31 33478
2009-06-30 24868
2009-09-30 22138
2009-12-31 17898
2010-03-31 24813
2010-06-30 24240
2010-09-30 24409
2010-12-31 27498
2011-03-31 28787
2011-06-30 23730
2011-09-30 28556
2011-12-31 27736
2012-03-31 26575
2012-06-30 26800
2012-09-30 27650
2012-12-31 29047
2013-03-31 25108
2013-06-30 24655
2013-09-30 24711
2013-12-31 24408
2014-03-31 25976
2014-06-30 26386
2014-09-30 25901
2014-12-31 25379
2015-03-31 25498
2015-06-30 24965
2015-09-30 25462
2015-12-31 25394
2016-03-31 25489
2016-06-30 25127
2016-09-30 25554
2016-12-31 21963
2017-03-31 19953
2017-06-30 22019
2017-09-30 24877
2017-12-31 25643
2018-03-31 26718
2018-06-30 24864
2018-09-30 20712
2018-12-31 20788
2019-03-31 19204
2019-06-30 21658
2019-09-30 23940
2019-12-31 25590
2020-03-31 22239
2020-06-30 29755
2020-09-30 34550
2020-12-31 36443
2021-03-31 34165
2021-06-30 27187
2021-09-30 27772
2021-12-31 35475
2022-03-31 30964
2022-06-30 26482
2022-09-30 20679
2022-12-31 22601
2023-03-31 24575
2023-06-30 22549
2023-09-30 21697
2023-12-31 23563