Quarterly US dollars
1999-09-30 444
1999-12-31 651
2000-03-31 599
2000-06-30 469
2000-09-30 420
2000-12-31 466
2001-03-31 497
2001-06-30 1873
2001-09-30 475
2001-12-31 503
2002-03-31 363
2002-06-30 439
2002-09-30 581
2002-12-31 600
2003-03-31 933
2003-06-30 1260
2003-09-30 1481
2003-12-31 1556
2004-03-31 1160
2004-06-30 1898
2004-09-30 3417
2004-12-31 4739
2005-03-31 7844
2005-06-30 10904
2005-09-30 10740
2005-12-31 10044
2006-03-31 8554
2006-06-30 9209
2006-09-30 10921
2006-12-31 12096
2007-03-31 10969
2007-06-30 21761
2007-09-30 17097
2007-12-31 25389
2008-03-31 27555
2008-06-30 15913
2008-09-30 11993
2008-12-31 44215
2009-03-31 26467
2009-06-30 19719
2009-09-30 15239
2009-12-31 12174
2010-03-31 18625
2010-06-30 19816
2010-09-30 18238
2010-12-31 21914
2011-03-31 20835
2011-06-30 16280
2011-09-30 22063
2011-12-31 21297
2012-03-31 19652
2012-06-30 21369
2012-09-30 21169
2012-12-31 22245
2013-03-31 19186
2013-06-30 18224
2013-09-30 13839
2013-12-31 12626
2014-03-31 13289
2014-06-30 16160
2014-09-30 16366
2014-12-31 16366
2015-03-31 18542
2015-06-30 17533
2015-09-30 15794
2015-12-31 14611
2016-03-31 14378
2016-06-30 12307
2016-09-30 14087
2016-12-31 10589
2017-03-31 9894
2017-06-30 11418
2017-09-30 13692
2017-12-31 13260
2018-03-31 15855
2018-06-30 15511
2018-09-30 11776
2018-12-31 11671
2019-03-31 11715
2019-06-30 14608
2019-09-30 17058
2019-12-31 15147
2020-03-31 15783
2020-06-30 13285
2020-09-30 17289
2020-12-31 16090
2021-03-31 15181
2021-06-30 11815
2021-09-30 12317
2021-12-31 16384
2022-03-31 15727
2022-06-30 14041
2022-09-30 11439
2022-12-31 6600
2023-03-31 11786
2023-06-30 15534
2023-09-30 14799
2023-12-31 14596