Quarterly US dollars
1999-03-31 22188
1999-06-30 25264
1999-09-30 25850
1999-12-31 29921
2000-03-31 26922
2000-06-30 22882
2000-09-30 21253
2000-12-31 24104
2001-03-31 30636
2001-06-30 27230
2001-09-30 31480
2001-12-31 33622
2002-03-31 33303
2002-06-30 27284
2002-09-30 37156
2002-12-31 30932
2003-03-31 35173
2003-06-30 36914
2003-09-30 41279
2003-12-31 34382
2004-03-31 40584
2004-06-30 42997
2004-09-30 43055
2004-12-31 36501
2005-03-31 39845
2005-06-30 37432
2005-09-30 35654
2005-12-31 30773
2006-03-31 37012
2006-06-30 41455
2006-09-30 40855
2006-12-31 35391
2007-03-31 29785
2007-06-30 37382
2007-09-30 39822
2007-12-31 51224
2008-03-31 54196
2008-06-30 57872
2008-09-30 54518
2008-12-31 47977
2009-03-31 38669
2009-06-30 33267
2009-09-30 31919
2009-12-31 35875
2010-03-31 34998
2010-06-30 55759
2010-09-30 61693
2010-12-31 65615
2011-03-31 67291
2011-06-30 75259
2011-09-30 83545
2011-12-31 79054
2012-03-31 72619
2012-06-30 75473
2012-09-30 71446
2012-12-31 73394
2013-03-31 79122
2013-06-30 68751
2013-09-30 72670
2013-12-31 82624
2014-03-31 92735
2014-06-30 86949
2014-09-30 91936
2014-12-31 81916
2015-03-31 76328
2015-06-30 70869
2015-09-30 65857
2015-12-31 72962
2016-03-31 55278
2016-06-30 54144
2016-09-30 54801
2016-12-31 50312
2017-03-31 47364
2017-06-30 52741
2017-09-30 61063
2017-12-31 65286
2018-03-31 72142
2018-06-30 68496
2018-09-30 57402
2018-12-31 62886
2019-03-31 63953
2019-06-30 70424
2019-09-30 64604
2019-12-31 72967
2020-03-31 56886
2020-06-30 55691
2020-09-30 59442
2020-12-31 66557
2021-03-31 66129
2021-06-30 69590
2021-09-30 63105
2021-12-31 66872
2022-03-31 78571
2022-06-30 77277
2022-09-30 78013
2022-12-31 83644
2023-03-31 87965
2023-06-30 83596
2023-09-30 67677