Quarterly US dollars
1999-03-31 4935
1999-06-30 5200
1999-09-30 5343
1999-12-31 4731
2000-03-31 4536
2000-06-30 5367
2000-09-30 6604
2000-12-31 6974
2001-03-31 6266
2001-06-30 6312
2001-09-30 7455
2001-12-31 6129
2002-03-31 5976
2002-06-30 5616
2002-09-30 5114
2002-12-31 5553
2003-03-31 6003
2003-06-30 5420
2003-09-30 4757
2003-12-31 5976
2004-03-31 8412
2004-06-30 7153
2004-09-30 7851
2004-12-31 8551
2005-03-31 7802
2005-06-30 10101
2005-09-30 8931
2005-12-31 11282
2006-03-31 17653
2006-06-30 13225
2006-09-30 13477
2006-12-31 14733
2007-03-31 13784
2007-06-30 13212
2007-09-30 16793
2007-12-31 15817
2008-03-31 19375
2008-06-30 17993
2008-09-30 18721
2008-12-31 22556
2009-03-31 17918
2009-06-30 21826
2009-09-30 23430
2009-12-31 21515
2010-03-31 21808
2010-06-30 14263
2010-09-30 14351
2010-12-31 10746
2011-03-31 17291
2011-06-30 18463
2011-09-30 16471
2011-12-31 15885
2012-03-31 18422
2012-06-30 22709
2012-09-30 19483
2012-12-31 14193
2013-03-31 12883
2013-06-30 12812
2013-09-30 10641
2013-12-31 9797
2014-03-31 8132
2014-06-30 7278
2014-09-30 7815
2014-12-31 8170
2015-03-31 8416
2015-06-30 9444
2015-09-30 9503
2015-12-31 8500
2016-03-31 9140
2016-06-30 7541
2016-09-30 6726
2016-12-31 5945
2017-03-31 6040
2017-06-30 5745
2017-09-30 5515
2017-12-31 7409
2018-03-31 8516
2018-06-30 11911
2018-09-30 7274
2018-12-31 6514
2019-03-31 5942
2019-06-30 7361
2019-09-30 5961
2019-12-31 5053
2020-03-31 5710
2020-06-30 6700
2020-09-30 7095
2020-12-31 6372
2021-03-31 4657
2021-06-30 4161
2021-09-30 5024
2021-12-31 5710
2022-03-31 5627
2022-06-30 5512
2022-09-30 5729
2022-12-31 5114
2023-03-31 5272
2023-06-30 5159
2023-09-30 5508