Quarterly US dollars
1999-03-31 55841
1999-06-30 56333
1999-09-30 53898
1999-12-31 49792
2000-03-31 53425
2000-06-30 58058
2000-09-30 52372
2000-12-31 53043
2001-03-31 58486
2001-06-30 59727
2001-09-30 57241
2001-12-31 52476
2002-03-31 49304
2002-06-30 49671
2002-09-30 43832
2002-12-31 41121
2003-03-31 39299
2003-06-30 43726
2003-09-30 39550
2003-12-31 40428
2004-03-31 38897
2004-06-30 40280
2004-09-30 35952
2004-12-31 42188
2005-03-31 40466
2005-06-30 35633
2005-09-30 36633
2005-12-31 60461
2006-03-31 59810
2006-06-30 64906
2006-09-30 69025
2006-12-31 72384
2007-03-31 78566
2007-06-30 77470
2007-09-30 75608
2007-12-31 77130
2008-03-31 92287
2008-06-30 95695
2008-09-30 89864
2008-12-31 88445
2009-03-31 78604
2009-06-30 78770
2009-09-30 66710
2009-12-31 72805
2010-03-31 75799
2010-06-30 70957
2010-09-30 72283
2010-12-31 75208
2011-03-31 73320
2011-06-30 69433
2011-09-30 56091
2011-12-31 48332
2012-03-31 57580
2012-06-30 45539
2012-09-30 44619
2012-12-31 49877
2013-03-31 45865
2013-06-30 40543
2013-09-30 42836
2013-12-31 38904
2014-03-31 39212
2014-06-30 38645
2014-09-30 33555
2014-12-31 29964
2015-03-31 25535
2015-06-30 25667
2015-09-30 24115
2015-12-31 24927
2016-03-31 25378
2016-06-30 25682
2016-09-30 23949
2016-12-31 24871
2017-03-31 29483
2017-06-30 29302
2017-09-30 30960
2017-12-31 32108
2018-03-31 29649
2018-06-30 28239
2018-09-30 23038
2018-12-31 20962
2019-03-31 22082
2019-06-30 24047
2019-09-30 24259
2019-12-31 26801
2020-03-31 26311
2020-06-30 25576
2020-09-30 23091
2020-12-31 20248
2021-03-31 18623
2021-06-30 16846
2021-09-30 14087
2021-12-31 13369
2022-03-31 12765
2022-06-30 10386
2022-09-30 7363
2022-12-31 4342
2023-03-31 4535
2023-06-30 4520
2023-09-30 4345