Quarterly US dollars
1999-09-30 837
1999-12-31 678
2000-03-31 668
2000-06-30 666
2000-09-30 645
2000-12-31 115
2001-03-31 121
2001-06-30 119
2001-09-30 192
2001-12-31 112
2002-03-31 119
2002-06-30 113
2002-09-30 115
2002-12-31 263
2003-03-31 109
2003-06-30 134
2003-09-30 119
2003-12-31 142
2004-03-31 184
2004-06-30 180
2004-09-30 192
2004-12-31 209
2005-03-31 200
2005-06-30 221
2005-09-30 198
2005-12-31 247
2006-03-31 199
2006-06-30 209
2006-09-30 166
2006-12-31 172
2007-03-31 162
2007-06-30 160
2007-09-30 223
2007-12-31 235
2008-03-31 939
2008-06-30 1627
2008-09-30 1353
2008-12-31 599
2009-03-31 460
2009-06-30 414
2009-09-30 565
2009-12-31 535
2010-03-31 405
2010-06-30 448
2010-09-30 599
2010-12-31 476
2011-03-31 327
2011-06-30 424
2011-09-30 384
2011-12-31 587
2012-03-31 447
2012-06-30 590
2012-09-30 308
2012-12-31 240
2013-03-31 323
2013-06-30 227
2013-09-30 204
2013-12-31 349
2014-03-31 259
2014-06-30 423
2014-09-30 419
2014-12-31 150
2015-03-31 356
2015-06-30 320
2015-09-30 283
2015-12-31 377
2016-03-31 450
2016-06-30 2017
2016-09-30 884
2016-12-31 1374
2017-03-31 1607
2017-06-30 3028
2017-09-30 5128
2017-12-31 6080
2018-03-31 6001
2018-06-30 5997
2018-09-30 2829
2018-12-31 29284
2019-03-31 19324
2019-06-30 3350
2019-09-30 8339
2019-12-31 18588
2020-03-31 4491
2020-06-30 3247
2020-09-30 3008
2020-12-31 18894
2021-03-31 3446
2021-06-30 3097
2021-09-30 4044
2021-12-31 14676
2022-03-31 7266
2022-06-30 10966
2022-09-30 7282
2022-12-31 13943
2023-03-31 5304
2023-06-30 4815
2023-09-30 4464
2023-12-31 4600