Quarterly US dollars
1999-03-31 173666
1999-06-30 162479
1999-09-30 166932
1999-12-31 161443
2000-03-31 167308
2000-06-30 190051
2000-09-30 195615
2000-12-31 206140
2001-03-31 218495
2001-06-30 217843
2001-09-30 229291
2001-12-31 205234
2002-03-31 244120
2002-06-30 241979
2002-09-30 252042
2002-12-31 235765
2003-03-31 250561
2003-06-30 271456
2003-09-30 296942
2003-12-31 311067
2004-03-31 339230
2004-06-30 354992
2004-09-30 371021
2004-12-31 425172
2005-03-31 443489
2005-06-30 485936
2005-09-30 485281
2005-12-31 488259
2006-03-31 517537
2006-06-30 570582
2006-09-30 559973
2006-12-31 594766
2007-03-31 593330
2007-06-30 643212
2007-09-30 723871
2007-12-31 762722
2008-03-31 762394
2008-06-30 721293
2008-09-30 700829
2008-12-31 571099
2009-03-31 599019
2009-06-30 540243
2009-09-30 560439
2009-12-31 591803
2010-03-31 572399
2010-06-30 542404
2010-09-30 575527
2010-12-31 591805
2011-03-31 611477
2011-06-30 624605
2011-09-30 613483
2011-12-31 606888
2012-03-31 588796
2012-06-30 575627
2012-09-30 556932
2012-12-31 550485
2013-03-31 553451
2013-06-30 516750
2013-09-30 537552
2013-12-31 581213
2014-03-31 630017
2014-06-30 681242
2014-09-30 669483
2014-12-31 621283
2015-03-31 600872
2015-06-30 592262
2015-09-30 575897
2015-12-31 540149
2016-03-31 539928
2016-06-30 563574
2016-09-30 560809
2016-12-31 544752
2017-03-31 547111
2017-06-30 539949
2017-09-30 566140
2017-12-31 582257
2018-03-31 597306
2018-06-30 570643
2018-09-30 547814
2018-12-31 551207
2019-03-31 553746
2019-06-30 556446
2019-09-30 529397
2019-12-31 537821
2020-03-31 570166
2020-06-30 505729
2020-09-30 504170
2020-12-31 538910
2021-03-31 558725
2021-06-30 556131
2021-09-30 572820
2021-12-31 567641
2022-03-31 584097
2022-06-30 556893
2022-09-30 542574
2022-12-31 546441
2023-03-31 584199
2023-06-30 571836
2023-09-30 504655