Quarterly US dollars
1999-03-31 274043
1999-06-30 276499
1999-09-30 280829
1999-12-31 287736
2000-03-31 285688
2000-06-30 284905
2000-09-30 281448
2000-12-31 316203
2001-03-31 305204
2001-06-30 290309
2001-09-30 295720
2001-12-31 326940
2002-03-31 299213
2002-06-30 301106
2002-09-30 307647
2002-12-31 327710
2003-03-31 342046
2003-06-30 358104
2003-09-30 345852
2003-12-31 382141
2004-03-31 437575
2004-06-30 408411
2004-09-30 451988
2004-12-31 495702
2005-03-31 470911
2005-06-30 491190
2005-09-30 455515
2005-12-31 491580
2006-03-31 538927
2006-06-30 546761
2006-09-30 561787
2006-12-31 625097
2007-03-31 695625
2007-06-30 726258
2007-09-30 828613
2007-12-31 878533
2008-03-31 950893
2008-06-30 848599
2008-09-30 798304
2008-12-31 757707
2009-03-31 717983
2009-06-30 687933
2009-09-30 609803
2009-12-31 565920
2010-03-31 520959
2010-06-30 504023
2010-09-30 541449
2010-12-31 521283
2011-03-31 478757
2011-06-30 469397
2011-09-30 702721
2011-12-31 697877
2012-03-31 645897
2012-06-30 461299
2012-09-30 463139
2012-12-31 459165
2013-03-31 416556
2013-06-30 416961
2013-09-30 425571
2013-12-31 439582
2014-03-31 425771
2014-06-30 453194
2014-09-30 440795
2014-12-31 450882
2015-03-31 448154
2015-06-30 413409
2015-09-30 396252
2015-12-31 393573
2016-03-31 386021
2016-06-30 373160
2016-09-30 426605
2016-12-31 404766
2017-03-31 376182
2017-06-30 353385
2017-09-30 423600
2017-12-31 431260
2018-03-31 411295
2018-06-30 375291
2018-09-30 332264
2018-12-31 336589
2019-03-31 325079
2019-06-30 331673
2019-09-30 324058
2019-12-31 383485
2020-03-31 347132
2020-06-30 332385
2020-09-30 344610
2020-12-31 349939
2021-03-31 338582
2021-06-30 354222
2021-09-30 360352
2021-12-31 378295
2022-03-31 407188
2022-06-30 417466
2022-09-30 442713
2022-12-31 401341
2023-03-31 390156
2023-06-30 405425
2023-09-30 391629