Quarterly US dollars
1999-03-31 1853
1999-06-30 1837
1999-09-30 1873
1999-12-31 2995
2000-03-31 2134
2000-06-30 1908
2000-09-30 2775
2000-12-31 2558
2001-03-31 3186
2001-06-30 5061
2001-09-30 4064
2001-12-31 3333
2002-03-31 3764
2002-06-30 3577
2002-09-30 2476
2002-12-31 2651
2003-03-31 3311
2003-06-30 4335
2003-09-30 4893
2003-12-31 7782
2004-03-31 9341
2004-06-30 11393
2004-09-30 13225
2004-12-31 14117
2005-03-31 15127
2005-06-30 8959
2005-09-30 11697
2005-12-31 9045
2006-03-31 11141
2006-06-30 11024
2006-09-30 9222
2006-12-31 8590
2007-03-31 11589
2007-06-30 18215
2007-09-30 12472
2007-12-31 19185
2008-03-31 19775
2008-06-30 13641
2008-09-30 7709
2008-12-31 7101
2009-03-31 8501
2009-06-30 9930
2009-09-30 6644
2009-12-31 5431
2010-03-31 6524
2010-06-30 6184
2010-09-30 5052
2010-12-31 5712
2011-03-31 7510
2011-06-30 4593
2011-09-30 3718
2011-12-31 4167
2012-03-31 2454
2012-06-30 2855
2012-09-30 2708
2012-12-31 4765
2013-03-31 3106
2013-06-30 3206
2013-09-30 2338
2013-12-31 5014
2014-03-31 7923
2014-06-30 7834
2014-09-30 8311
2014-12-31 9033
2015-03-31 9756
2015-06-30 4816
2015-09-30 5890
2015-12-31 6471
2016-03-31 9641
2016-06-30 9569
2016-09-30 11174
2016-12-31 6911
2017-03-31 9401
2017-06-30 8724
2017-09-30 9155
2017-12-31 8525
2018-03-31 8020
2018-06-30 8228
2018-09-30 8117
2018-12-31 8604
2019-03-31 9912
2019-06-30 10960
2019-09-30 8076
2019-12-31 6943
2020-03-31 10633
2020-06-30 10104
2020-09-30 10949
2020-12-31 10469
2021-03-31 8801
2021-06-30 6039
2021-09-30 6645
2021-12-31 6947
2022-03-31 8494
2022-06-30 8788
2022-09-30 10337
2022-12-31 10534
2023-03-31 10524
2023-06-30 11108
2023-09-30 9429