Quarterly US dollars
1999-03-31 166630
1999-06-30 163057
1999-09-30 164097
1999-12-31 137367
2000-03-31 156431
2000-06-30 154730
2000-09-30 143510
2000-12-31 130905
2001-03-31 137976
2001-06-30 138715
2001-09-30 141062
2001-12-31 138800
2002-03-31 147179
2002-06-30 161445
2002-09-30 166121
2002-12-31 180314
2003-03-31 210435
2003-06-30 228187
2003-09-30 236755
2003-12-31 273102
2004-03-31 298662
2004-06-30 286827
2004-09-30 304829
2004-12-31 323934
2005-03-31 340208
2005-06-30 345634
2005-09-30 349047
2005-12-31 323531
2006-03-31 341206
2006-06-30 377479
2006-09-30 377459
2006-12-31 386520
2007-03-31 443583
2007-06-30 476135
2007-09-30 476904
2007-12-31 513150
2008-03-31 582923
2008-06-30 572152
2008-09-30 507861
2008-12-31 475822
2009-03-31 507053
2009-06-30 509589
2009-09-30 480985
2009-12-31 450577
2010-03-31 476279
2010-06-30 452645
2010-09-30 515908
2010-12-31 502754
2011-03-31 522311
2011-06-30 546923
2011-09-30 552895
2011-12-31 511614
2012-03-31 537061
2012-06-30 561068
2012-09-30 558220
2012-12-31 590277
2013-03-31 571309
2013-06-30 560039
2013-09-30 555069
2013-12-31 598829
2014-03-31 554173
2014-06-30 557177
2014-09-30 533382
2014-12-31 521735
2015-03-31 513951
2015-06-30 546840
2015-09-30 535489
2015-12-31 513364
2016-03-31 523483
2016-06-30 511378
2016-09-30 520602
2016-12-31 490998
2017-03-31 480325
2017-06-30 514000
2017-09-30 534531
2017-12-31 540545
2018-03-31 552700
2018-06-30 546580
2018-09-30 556149
2018-12-31 549989
2019-03-31 526915
2019-06-30 553326
2019-09-30 554972
2019-12-31 545222
2020-03-31 562440
2020-06-30 594563
2020-09-30 612209
2020-12-31 602163
2021-03-31 573133
2021-06-30 586368
2021-09-30 571431
2021-12-31 595068
2022-03-31 591264
2022-06-30 564387
2022-09-30 550505
2022-12-31 549268
2023-03-31 516767
2023-06-30 508574
2023-09-30 486337