Quarterly US dollars
1999-03-31 4402
1999-06-30 5075
1999-09-30 4509
1999-12-31 3990
2000-03-31 3171
2000-06-30 4391
2000-09-30 3589
2000-12-31 3616
2001-03-31 3628
2001-06-30 3326
2001-09-30 3672
2001-12-31 3883
2002-03-31 3832
2002-06-30 3299
2002-09-30 3865
2002-12-31 4393
2003-03-31 3755
2003-06-30 3650
2003-09-30 4441
2003-12-31 4279
2004-03-31 5349
2004-06-30 5723
2004-09-30 7636
2004-12-31 6834
2005-03-31 7340
2005-06-30 7303
2005-09-30 5570
2005-12-31 4353
2006-03-31 4962
2006-06-30 6203
2006-09-30 6287
2006-12-31 7484
2007-03-31 7019
2007-06-30 6485
2007-09-30 9548
2007-12-31 9579
2008-03-31 9874
2008-06-30 11173
2008-09-30 11171
2008-12-31 12354
2009-03-31 12461
2009-06-30 14625
2009-09-30 18541
2009-12-31 16211
2010-03-31 17073
2010-06-30 16944
2010-09-30 20193
2010-12-31 20523
2011-03-31 19067
2011-06-30 19463
2011-09-30 17478
2011-12-31 15875
2012-03-31 17333
2012-06-30 16835
2012-09-30 15745
2012-12-31 13764
2013-03-31 14658
2013-06-30 16046
2013-09-30 15358
2013-12-31 14052
2014-03-31 13520
2014-06-30 12164
2014-09-30 12535
2014-12-31 12659
2015-03-31 11538
2015-06-30 10401
2015-09-30 7960
2015-12-31 6942
2016-03-31 7184
2016-06-30 6455
2016-09-30 7430
2016-12-31 7080
2017-03-31 6380
2017-06-30 10401
2017-09-30 6573
2017-12-31 7230
2018-03-31 6790
2018-06-30 7752
2018-09-30 7827
2018-12-31 6098
2019-03-31 5903
2019-06-30 5983
2019-09-30 6098
2019-12-31 7483
2020-03-31 7613
2020-06-30 7968
2020-09-30 7319
2020-12-31 6160
2021-03-31 6909
2021-06-30 7705
2021-09-30 7851
2021-12-31 7587
2022-03-31 7664
2022-06-30 9686
2022-09-30 7019
2022-12-31 8809
2023-03-31 6341
2023-06-30 9543
2023-09-30 10288