Quarter	US dollars
1999-09-30	112
1999-12-31	114
2000-03-31	164
2000-06-30	183
2000-09-30	67
2000-12-31	112
2001-03-31	104
2001-06-30	77
2001-09-30	56
2001-12-31	54
2002-03-31	41
2002-06-30	76
2002-09-30	132
2002-12-31	249
2003-03-31	269
2003-06-30	254
2003-09-30	279
2003-12-31	292
2004-03-31	230
2004-06-30	247
2004-09-30	233
2004-12-31	232
2005-03-31	138
2005-06-30	219
2005-09-30	203
2005-12-31	336
2006-03-31	343
2006-06-30	618
2006-09-30	618
2006-12-31	444
2007-03-31	839
2007-06-30	648
2007-09-30	1711
2007-12-31	1985
2008-03-31	2435
2008-06-30	2515
2008-09-30	2306
2008-12-31	3506
2009-03-31	2369
2009-06-30	1905
2009-09-30	2041
2009-12-31	1742
2010-03-31	1950
2010-06-30	2455
2010-09-30	3142
2010-12-31	2672
2011-03-31	2656
2011-06-30	2527
2011-09-30	3435
2011-12-31	3332
2012-03-31	3169
2012-06-30	3189
2012-09-30	2705
2012-12-31	3033
2013-03-31	3098
2013-06-30	2665
2013-09-30	2470
2013-12-31	2335
2014-03-31	2268
2014-06-30	2669
2014-09-30	2753
2014-12-31	2956
2015-03-31	2724
2015-06-30	1965
2015-09-30	1765
2015-12-31	1692
2016-03-31	1487
2016-06-30	1469
2016-09-30	1467
2016-12-31	1187
2017-03-31	740
2017-06-30	743
2017-09-30	711
2017-12-31	721
2018-03-31	667
2018-06-30	306
2018-09-30	297
2018-12-31	682
2019-03-31	856
2019-06-30	1228
2019-09-30	1520
2019-12-31	1160
2020-03-31	1693
2020-06-30	986
2020-09-30	1110
2020-12-31	869
2021-03-31	600
2021-06-30	648
2021-09-30	1183
2021-12-31	361
2022-03-31	916
2022-06-30	459
2022-09-30	492
2022-12-31	336
2023-03-31	309
2023-06-30	246
2023-09-30	207