Quarterly US dollars
1999-03-31 28499
1999-06-30 29581
1999-09-30 29041
1999-12-31 26957
2000-03-31 36437
2000-06-30 36510
2000-09-30 38830
2000-12-31 36957
2001-03-31 39774
2001-06-30 43264
2001-09-30 42670
2001-12-31 37523
2002-03-31 34913
2002-06-30 37560
2002-09-30 36097
2002-12-31 36913
2003-03-31 38003
2003-06-30 39128
2003-09-30 43156
2003-12-31 52773
2004-03-31 66887
2004-06-30 73474
2004-09-30 78069
2004-12-31 75382
2005-03-31 83237
2005-06-30 70309
2005-09-30 82955
2005-12-31 72546
2006-03-31 84555
2006-06-30 84802
2006-09-30 90381
2006-12-31 91820
2007-03-31 105397
2007-06-30 110606
2007-09-30 117567
2007-12-31 111174
2008-03-31 95647
2008-06-30 67501
2008-09-30 58724
2008-12-31 49920
2009-03-31 57950
2009-06-30 61010
2009-09-30 53943
2009-12-31 41227
2010-03-31 47253
2010-06-30 56926
2010-09-30 54152
2010-12-31 62078
2011-03-31 55938
2011-06-30 55971
2011-09-30 62713
2011-12-31 63733
2012-03-31 67198
2012-06-30 59514
2012-09-30 75788
2012-12-31 77039
2013-03-31 82835
2013-06-30 70406
2013-09-30 80049
2013-12-31 98466
2014-03-31 101717
2014-06-30 120910
2014-09-30 120083
2014-12-31 116111
2015-03-31 113566
2015-06-30 115502
2015-09-30 111945
2015-12-31 115857
2016-03-31 131380
2016-06-30 123485
2016-09-30 124017
2016-12-31 104974
2017-03-31 117747
2017-06-30 116465
2017-09-30 116196
2017-12-31 120073
2018-03-31 113724
2018-06-30 102649
2018-09-30 115201
2018-12-31 117282
2019-03-31 148257
2019-06-30 141185
2019-09-30 126989
2019-12-31 116270
2020-03-31 147619
2020-06-30 123394
2020-09-30 128022
2020-12-31 142047
2021-03-31 174831
2021-06-30 175531
2021-09-30 182883
2021-12-31 186994
2022-03-31 196895
2022-06-30 184711
2022-09-30 150927
2022-12-31 138730
2023-03-31 127652
2023-06-30 111736
2023-09-30 125315