Quarterly US dollars
1999-03-31 2229
1999-06-30 2146
1999-09-30 2088
1999-12-31 2505
2000-03-31 2341
2000-06-30 2495
2000-09-30 2056
2000-12-31 2330
2001-03-31 1709
2001-06-30 1687
2001-09-30 3132
2001-12-31 1763
2002-03-31 2182
2002-06-30 2373
2002-09-30 2270
2002-12-31 2421
2003-03-31 3040
2003-06-30 5203
2003-09-30 3221
2003-12-31 3430
2004-03-31 4942
2004-06-30 3505
2004-09-30 4284
2004-12-31 4458
2005-03-31 4103
2005-06-30 2968
2005-09-30 3454
2005-12-31 4580
2006-03-31 5427
2006-06-30 5073
2006-09-30 5117
2006-12-31 4479
2007-03-31 7667
2007-06-30 7810
2007-09-30 7467
2007-12-31 5359
2008-03-31 5926
2008-06-30 5722
2008-09-30 4576
2008-12-31 4527
2009-03-31 3614
2009-06-30 3800
2009-09-30 3505
2009-12-31 3299
2010-03-31 3806
2010-06-30 4571
2010-09-30 6671
2010-12-31 2970
2011-03-31 5149
2011-06-30 6173
2011-09-30 4277
2011-12-31 4998
2012-03-31 9029
2012-06-30 9793
2012-09-30 10828
2012-12-31 10006
2013-03-31 10490
2013-06-30 11182
2013-09-30 10079
2013-12-31 9594
2014-03-31 10345
2014-06-30 11801
2014-09-30 8030
2014-12-31 6971
2015-03-31 7004
2015-06-30 7517
2015-09-30 6465
2015-12-31 7241
2016-03-31 7109
2016-06-30 9141
2016-09-30 10411
2016-12-31 8919
2017-03-31 8761
2017-06-30 11825
2017-09-30 13318
2017-12-31 10852
2018-03-31 11293
2018-06-30 8459
2018-09-30 6056
2018-12-31 5342
2019-03-31 5604
2019-06-30 6159
2019-09-30 3732
2019-12-31 4204
2020-03-31 5115
2020-06-30 5833
2020-09-30 8669
2020-12-31 5918
2021-03-31 3761
2021-06-30 3816
2021-09-30 3946
2021-12-31 3395
2022-03-31 4291
2022-06-30 4078
2022-09-30 2792
2022-12-31 2755
2023-03-31 2891
2023-06-30 2854
2023-09-30 3636