Quarterly US dollars
1999-09-30 31637
1999-12-31 30161
2000-03-31 32469
2000-06-30 28875
2000-09-30 31186
2000-12-31 30676
2001-03-31 29016
2001-06-30 25723
2001-09-30 30291
2001-12-31 29406
2002-03-31 29415
2002-06-30 28637
2002-09-30 29899
2002-12-31 28228
2003-03-31 29888
2003-06-30 31843
2003-09-30 32107
2003-12-31 31481
2004-03-31 38634
2004-06-30 35578
2004-09-30 40049
2004-12-31 39416
2005-03-31 41577
2005-06-30 37694
2005-09-30 43868
2005-12-31 39978
2006-03-31 41262
2006-06-30 43955
2006-09-30 43875
2006-12-31 44937
2007-03-31 45039
2007-06-30 47632
2007-09-30 54973
2007-12-31 54330
2008-03-31 67068
2008-06-30 69755
2008-09-30 70028
2008-12-31 61062
2009-03-31 58508
2009-06-30 57244
2009-09-30 62096
2009-12-31 66979
2010-03-31 68572
2010-06-30 71807
2010-09-30 79867
2010-12-31 81876
2011-03-31 91974
2011-06-30 96042
2011-09-30 92539
2011-12-31 94045
2012-03-31 97017
2012-06-30 97758
2012-09-30 102386
2012-12-31 103019
2013-03-31 106001
2013-06-30 101132
2013-09-30 111188
2013-12-31 113913
2014-03-31 123592
2014-06-30 123555
2014-09-30 124023
2014-12-31 112794
2015-03-31 107041
2015-06-30 112807
2015-09-30 107382
2015-12-31 94190
2016-03-31 96452
2016-06-30 101288
2016-09-30 97886
2016-12-31 93075
2017-03-31 98443
2017-06-30 103807
2017-09-30 107300
2017-12-31 109761
2018-03-31 110576
2018-06-30 109803
2018-09-30 112600
2018-12-31 116970
2019-03-31 124571
2019-06-30 121154
2019-09-30 118167
2019-12-31 123186
2020-03-31 124598
2020-06-30 131207
2020-09-30 138500
2020-12-31 148856
2021-03-31 150385
2021-06-30 150324
2021-09-30 156050
2021-12-31 158564
2022-03-31 160378
2022-06-30 158366
2022-09-30 154888
2022-12-31 164198
2023-03-31 168231
2023-06-30 166670
2023-09-30 162088