Quarterly US dollars
1999-03-31 763
1999-06-30 831
1999-09-30 1154
1999-12-31 945
2000-03-31 1350
2000-06-30 2117
2000-09-30 2364
2000-12-31 2352
2001-03-31 1140
2001-06-30 1753
2001-09-30 1371
2001-12-31 2092
2002-03-31 1687
2002-06-30 1777
2002-09-30 1679
2002-12-31 1542
2003-03-31 906
2003-06-30 1041
2003-09-30 872
2003-12-31 1253
2004-03-31 996
2004-06-30 1099
2004-09-30 1033
2004-12-31 1292
2005-03-31 982
2005-06-30 1074
2005-09-30 1514
2005-12-31 2034
2006-03-31 2425
2006-06-30 1485
2006-09-30 2196
2006-12-31 1103
2007-03-31 1538
2007-06-30 1600
2007-09-30 1409
2007-12-31 3758
2008-03-31 1526
2008-06-30 2692
2008-09-30 2144
2008-12-31 5757
2009-03-31 5097
2009-06-30 6476
2009-09-30 3116
2009-12-31 4671
2010-03-31 5791
2010-06-30 7890
2010-09-30 6642
2010-12-31 9206
2011-03-31 12565
2011-06-30 10511
2011-09-30 10141
2011-12-31 15261
2012-03-31 25159
2012-06-30 28721
2012-09-30 25226
2012-12-31 18508
2013-03-31 15660
2013-06-30 11947
2013-09-30 12458
2013-12-31 7427
2014-03-31 8821
2014-06-30 6245
2014-09-30 6519
2014-12-31 7471
2015-03-31 3554
2015-06-30 4124
2015-09-30 3211
2015-12-31 8240
2016-03-31 4580
2016-06-30 6171
2016-09-30 6438
2016-12-31 5698
2017-03-31 5224
2017-06-30 5530
2017-09-30 9980
2017-12-31 9099
2018-03-31 9266
2018-06-30 9002
2018-09-30 8444
2018-12-31 8412
2019-03-31 11724
2019-06-30 14131
2019-09-30 13411
2019-12-31 11478
2020-03-31 13839
2020-06-30 8578
2020-09-30 7387
2020-12-31 6708
2021-03-31 8549
2021-06-30 10098
2021-09-30 22666
2021-12-31 23185
2022-03-31 21568
2022-06-30 23287
2022-09-30 24706
2022-12-31 27743
2023-03-31 32128
2023-06-30 35960
2023-09-30 38296