Quarterly US dollars
1999-03-31 206089
1999-06-30 203711
1999-09-30 238781
1999-12-31 249009
2000-03-31 271716
2000-06-30 266846
2000-09-30 274182
2000-12-31 331788
2001-03-31 302796
2001-06-30 269789
2001-09-30 282130
2001-12-31 299903
2002-03-31 283447
2002-06-30 327516
2002-09-30 341855
2002-12-31 379173
2003-03-31 414576
2003-06-30 453058
2003-09-30 429545
2003-12-31 509400
2004-03-31 552074
2004-06-30 574464
2004-09-30 591953
2004-12-31 608732
2005-03-31 632840
2005-06-30 682413
2005-09-30 641095
2005-12-31 646356
2006-03-31 744551
2006-06-30 834885
2006-09-30 792058
2006-12-31 809301
2007-03-31 1031851
2007-06-30 1002118
2007-09-30 1005511
2007-12-31 1028614
2008-03-31 1025959
2008-06-30 826980
2008-09-30 746046
2008-12-31 622653
2009-03-31 594525
2009-06-30 577034
2009-09-30 602474
2009-12-31 537451
2010-03-31 547172
2010-06-30 553184
2010-09-30 619147
2010-12-31 583372
2011-03-31 483257
2011-06-30 543913
2011-09-30 523506
2011-12-31 550045
2012-03-31 571561
2012-06-30 560602
2012-09-30 572452
2012-12-31 538323
2013-03-31 522787
2013-06-30 518418
2013-09-30 515660
2013-12-31 498342
2014-03-31 480276
2014-06-30 522180
2014-09-30 511800
2014-12-31 496226
2015-03-31 454096
2015-06-30 384744
2015-09-30 377231
2015-12-31 370366
2016-03-31 343850
2016-06-30 331223
2016-09-30 359538
2016-12-31 327979
2017-03-31 323211
2017-06-30 336551
2017-09-30 328349
2017-12-31 313622
2018-03-31 309767
2018-06-30 313908
2018-09-30 286244
2018-12-31 310975
2019-03-31 310289
2019-06-30 304962
2019-09-30 317932
2019-12-31 319454
2020-03-31 325489
2020-06-30 309820
2020-09-30 330113
2020-12-31 318592
2021-03-31 338199
2021-06-30 324001
2021-09-30 343328
2021-12-31 358886
2022-03-31 371053
2022-06-30 361506
2022-09-30 345638
2022-12-31 336291
2023-03-31 350870
2023-06-30 323502
2023-09-30 324590