Quarterly US dollars
1999-09-30 9160
1999-12-31 10073
2000-03-31 6780
2000-06-30 8750
2000-09-30 8251
2000-12-31 11952
2001-03-31 10951
2001-06-30 10843
2001-09-30 13934
2001-12-31 12855
2002-03-31 13037
2002-06-30 14628
2002-09-30 13858
2002-12-31 15288
2003-03-31 13642
2003-06-30 13123
2003-09-30 11918
2003-12-31 12528
2004-03-31 12491
2004-06-30 13224
2004-09-30 14084
2004-12-31 16913
2005-03-31 16749
2005-06-30 16831
2005-09-30 16087
2005-12-31 17301
2006-03-31 17997
2006-06-30 17804
2006-09-30 18217
2006-12-31 20638
2007-03-31 19670
2007-06-30 20361
2007-09-30 19263
2007-12-31 21735
2008-03-31 20592
2008-06-30 19184
2008-09-30 15448
2008-12-31 16210
2009-03-31 14043
2009-06-30 15812
2009-09-30 14499
2009-12-31 14165
2010-03-31 11241
2010-06-30 10124
2010-09-30 13504
2010-12-31 13076
2011-03-31 15155
2011-06-30 19281
2011-09-30 19809
2011-12-31 19171
2012-03-31 20172
2012-06-30 19153
2012-09-30 19610
2012-12-31 20415
2013-03-31 20783
2013-06-30 22814
2013-09-30 24132
2013-12-31 26498
2014-03-31 28429
2014-06-30 28454
2014-09-30 24587
2014-12-31 24954
2015-03-31 31564
2015-06-30 32545
2015-09-30 34124
2015-12-31 35041
2016-03-31 39772
2016-06-30 38739
2016-09-30 40414
2016-12-31 36261
2017-03-31 42798
2017-06-30 47744
2017-09-30 44773
2017-12-31 47627
2018-03-31 50624
2018-06-30 44863
2018-09-30 43041
2018-12-31 57809
2019-03-31 47888
2019-06-30 33639
2019-09-30 34816
2019-12-31 50926
2020-03-31 31815
2020-06-30 26193
2020-09-30 25438
2020-12-31 37339
2021-03-31 22102
2021-06-30 20396
2021-09-30 24777
2021-12-31 25809
2022-03-31 20156
2022-06-30 20692
2022-09-30 20629
2022-12-31 28109
2023-03-31 24072
2023-06-30 23979
2023-09-30 23988
2023-12-31 25577