Quarterly US dollars
1999-03-31 1345
1999-06-30 1255
1999-09-30 1396
1999-12-31 1382
2000-03-31 1613
2000-06-30 1411
2000-09-30 1475
2000-12-31 1714
2001-03-31 1714
2001-06-30 1897
2001-09-30 1991
2001-12-31 1942
2002-03-31 2057
2002-06-30 2113
2002-09-30 2154
2002-12-31 1905
2003-03-31 2061
2003-06-30 2203
2003-09-30 2173
2003-12-31 3209
2004-03-31 2876
2004-06-30 3241
2004-09-30 3347
2004-12-31 2973
2005-03-31 2542
2005-06-30 2575
2005-09-30 2709
2005-12-31 2700
2006-03-31 3244
2006-06-30 3245
2006-09-30 3668
2006-12-31 3315
2007-03-31 3614
2007-06-30 3953
2007-09-30 4162
2007-12-31 5082
2008-03-31 3973
2008-06-30 4900
2008-09-30 4663
2008-12-31 4437
2009-03-31 5160
2009-06-30 4186
2009-09-30 4456
2009-12-31 4685
2010-03-31 5228
2010-06-30 4784
2010-09-30 3455
2010-12-31 4244
2011-03-31 4787
2011-06-30 6033
2011-09-30 6279
2011-12-31 6261
2012-03-31 7238
2012-06-30 8187
2012-09-30 4976
2012-12-31 5614
2013-03-31 5377
2013-06-30 6580
2013-09-30 5266
2013-12-31 6029
2014-03-31 5800
2014-06-30 5765
2014-09-30 5382
2014-12-31 6902
2015-03-31 4881
2015-06-30 5114
2015-09-30 4331
2015-12-31 4498
2016-03-31 4370
2016-06-30 3799
2016-09-30 4294
2016-12-31 3968
2017-03-31 3919
2017-06-30 3485
2017-09-30 3714
2017-12-31 3645
2018-03-31 4608
2018-06-30 4157
2018-09-30 4278
2018-12-31 4267
2019-03-31 4139
2019-06-30 4301
2019-09-30 5191
2019-12-31 5919
2020-03-31 5875
2020-06-30 5956
2020-09-30 5923
2020-12-31 6525
2021-03-31 7427
2021-06-30 6827
2021-09-30 5883
2021-12-31 6390
2022-03-31 6149
2022-06-30 6106
2022-09-30 6253
2022-12-31 6219
2023-03-31 6474
2023-06-30 5477
2023-09-30 5655