Quarterly US dollars
1999-09-30 128022
1999-12-31 118388
2000-03-31 121406
2000-06-30 118338
2000-09-30 122848
2000-12-31 114571
2001-03-31 135113
2001-06-30 119093
2001-09-30 125743
2001-12-31 106100
2002-03-31 109882
2002-06-30 109144
2002-09-30 119253
2002-12-31 126261
2003-03-31 136390
2003-06-30 141152
2003-09-30 126976
2003-12-31 119511
2004-03-31 137285
2004-06-30 133225
2004-09-30 126206
2004-12-31 149969
2005-03-31 150846
2005-06-30 129976
2005-09-30 134546
2005-12-31 134578
2006-03-31 158594
2006-06-30 151222
2006-09-30 163454
2006-12-31 185158
2007-03-31 207896
2007-06-30 204386
2007-09-30 237500
2007-12-31 214207
2008-03-31 222199
2008-06-30 154366
2008-09-30 168150
2008-12-31 115319
2009-03-31 102753
2009-06-30 102039
2009-09-30 99688
2009-12-31 91430
2010-03-31 95987
2010-06-30 85096
2010-09-30 84669
2010-12-31 95812
2011-03-31 93665
2011-06-30 95668
2011-09-30 72562
2011-12-31 68927
2012-03-31 79593
2012-06-30 71196
2012-09-30 66582
2012-12-31 72020
2013-03-31 75908
2013-06-30 67037
2013-09-30 68143
2013-12-31 67763
2014-03-31 71432
2014-06-30 75500
2014-09-30 71052
2014-12-31 65348
2015-03-31 63640
2015-06-30 61607
2015-09-30 66745
2015-12-31 57690
2016-03-31 61677
2016-06-30 67607
2016-09-30 58245
2016-12-31 60549
2017-03-31 70268
2017-06-30 63094
2017-09-30 60168
2017-12-31 63327
2018-03-31 69278
2018-06-30 63719
2018-09-30 62165
2018-12-31 55251
2019-03-31 57234
2019-06-30 39625
2019-09-30 48085
2019-12-31 50017
2020-03-31 50106
2020-06-30 54257
2020-09-30 41166
2020-12-31 45700
2021-03-31 48366
2021-06-30 48513
2021-09-30 50835
2021-12-31 52816
2022-03-31 55100
2022-06-30 46780
2022-09-30 38678
2022-12-31 38416
2023-03-31 36941
2023-06-30 39226
2023-09-30 33955