Quarterly US dollars
1999-03-31 230164
1999-06-30 233882
1999-09-30 246116
1999-12-31 240987
2000-03-31 262159
2000-06-30 254520
2000-09-30 271064
2000-12-31 287513
2001-03-31 290552
2001-06-30 289932
2001-09-30 318037
2001-12-31 309017
2002-03-31 304287
2002-06-30 342949
2002-09-30 351944
2002-12-31 358334
2003-03-31 398797
2003-06-30 425592
2003-09-30 413464
2003-12-31 417551
2004-03-31 476379
2004-06-30 461862
2004-09-30 470553
2004-12-31 488987
2005-03-31 489019
2005-06-30 507697
2005-09-30 517490
2005-12-31 508411
2006-03-31 547986
2006-06-30 575892
2006-09-30 605939
2006-12-31 698282
2007-03-31 787104
2007-06-30 831073
2007-09-30 930949
2007-12-31 930455
2008-03-31 1038744
2008-06-30 989929
2008-09-30 892144
2008-12-31 877316
2009-03-31 859702
2009-06-30 885102
2009-09-30 921387
2009-12-31 822784
2010-03-31 804153
2010-06-30 762289
2010-09-30 870797
2010-12-31 870537
2011-03-31 935706
2011-06-30 980635
2011-09-30 972148
2011-12-31 909920
2012-03-31 955474
2012-06-30 952513
2012-09-30 926117
2012-12-31 927930
2013-03-31 895961
2013-06-30 861075
2013-09-30 814857
2013-12-31 806184
2014-03-31 815486
2014-06-30 829162
2014-09-30 788956
2014-12-31 783694
2015-03-31 797942
2015-06-30 749375
2015-09-30 755233
2015-12-31 725632
2016-03-31 779493
2016-06-30 729018
2016-09-30 725787
2016-12-31 638172
2017-03-31 675115
2017-06-30 692539
2017-09-30 700039
2017-12-31 663524
2018-03-31 735465
2018-06-30 664862
2018-09-30 670585
2018-12-31 659364
2019-03-31 649236
2019-06-30 675032
2019-09-30 691882
2019-12-31 672778
2020-03-31 724369
2020-06-30 715528
2020-09-30 703027
2020-12-31 688651
2021-03-31 641360
2021-06-30 615064
2021-09-30 603695
2021-12-31 608486
2022-03-31 586049
2022-06-30 557659
2022-09-30 526240
2022-12-31 531108
2023-03-31 516207
2023-06-30 510395
2023-09-30 521962