Quarter	US dollars
1999-03-31	318
1999-06-30	362
1999-09-30	356
1999-12-31	301
2000-03-31	283
2000-06-30	300
2000-09-30	291
2000-12-31	254
2001-03-31	297
2001-06-30	293
2001-09-30	405
2001-12-31	256
2002-03-31	232
2002-06-30	251
2002-09-30	274
2002-12-31	368
2003-03-31	303
2003-06-30	403
2003-09-30	377
2003-12-31	372
2004-03-31	390
2004-06-30	633
2004-09-30	654
2004-12-31	488
2005-03-31	495
2005-06-30	601
2005-09-30	582
2005-12-31	612
2006-03-31	618
2006-06-30	768
2006-09-30	627
2006-12-31	964
2007-03-31	1144
2007-06-30	1091
2007-09-30	1496
2007-12-31	1450
2008-03-31	1364
2008-06-30	1229
2008-09-30	1243
2008-12-31	1310
2009-03-31	1339
2009-06-30	2737
2009-09-30	1374
2009-12-31	1412
2010-03-31	1291
2010-06-30	1466
2010-09-30	1782
2010-12-31	2449
2011-03-31	2186
2011-06-30	1984
2011-09-30	2603
2011-12-31	2127
2012-03-31	2443
2012-06-30	2084
2012-09-30	2664
2012-12-31	2375
2013-03-31	2342
2013-06-30	2267
2013-09-30	2383
2013-12-31	2125
2014-03-31	2062
2014-06-30	1723
2014-09-30	1921
2014-12-31	1720
2015-03-31	1808
2015-06-30	1994
2015-09-30	23
2015-12-31	58
2016-03-31	58
2016-06-30	52
2016-09-30	36
2016-12-31	30
2017-03-31	55
2017-06-30	35
2017-09-30	25
2017-12-31	26
2018-03-31	27
2018-06-30	26
2018-09-30	21
2018-12-31	31
2019-03-31	45
2019-06-30	30
2019-09-30	41
2019-12-31	24
2020-03-31	21
2020-06-30	29
2020-09-30	34
2020-12-31	34
2021-03-31	34
2021-06-30	37
2021-09-30	32
2021-12-31	34
2022-03-31	29
2022-06-30	84
2022-09-30	21
2022-12-31	50
2023-03-31	54
2023-06-30	52
2023-09-30	24