Quarterly US dollars
1999-03-31 22153
1999-06-30 21786
1999-09-30 21727
1999-12-31 21819
2000-03-31 20508
2000-06-30 20559
2000-09-30 19754
2000-12-31 19821
2001-03-31 20462
2001-06-30 20655
2001-09-30 20283
2001-12-31 19586
2002-03-31 18879
2002-06-30 19909
2002-09-30 19579
2002-12-31 20121
2003-03-31 20489
2003-06-30 21687
2003-09-30 22647
2003-12-31 23680
2004-03-31 23551
2004-06-30 24699
2004-09-30 27018
2004-12-31 31211
2005-03-31 28442
2005-06-30 30753
2005-09-30 30770
2005-12-31 34192
2006-03-31 38670
2006-06-30 37310
2006-09-30 41663
2006-12-31 46416
2007-03-31 47715
2007-06-30 56879
2007-09-30 58726
2007-12-31 63759
2008-03-31 70073
2008-06-30 72830
2008-09-30 70685
2008-12-31 76543
2009-03-31 75204
2009-06-30 73393
2009-09-30 73590
2009-12-31 71297
2010-03-31 75855
2010-06-30 74830
2010-09-30 73821
2010-12-31 75056
2011-03-31 72851
2011-06-30 74358
2011-09-30 70815
2011-12-31 65090
2012-03-31 64485
2012-06-30 67234
2012-09-30 72307
2012-12-31 65871
2013-03-31 62957
2013-06-30 62561
2013-09-30 61623
2013-12-31 62884
2014-03-31 66670
2014-06-30 68365
2014-09-30 66723
2014-12-31 64524
2015-03-31 64723
2015-06-30 66824
2015-09-30 68010
2015-12-31 68994
2016-03-31 68775
2016-06-30 75920
2016-09-30 78320
2016-12-31 75869
2017-03-31 78974
2017-06-30 78693
2017-09-30 83666
2017-12-31 94464
2018-03-31 99451
2018-06-30 93271
2018-09-30 91741
2018-12-31 95326
2019-03-31 106532
2019-06-30 103633
2019-09-30 103768
2019-12-31 112522
2020-03-31 110013
2020-06-30 108113
2020-09-30 108188
2020-12-31 115348
2021-03-31 109821
2021-06-30 107957
2021-09-30 102996
2021-12-31 103316
2022-03-31 102774
2022-06-30 99133
2022-09-30 92421
2022-12-31 97877
2023-03-31 94209
2023-06-30 93588
2023-09-30 93822