Quarter	US dollars
2004-12-31	273
2005-03-31	183
2005-06-30	204
2005-09-30	182
2005-12-31	1059
2006-03-31	619
2006-06-30	329
2006-09-30	319
2006-12-31	526
2007-03-31	1038
2007-06-30	871
2007-09-30	2567
2007-12-31	3379
2008-03-31	2039
2008-06-30	1274
2008-09-30	1342
2008-12-31	1186
2009-03-31	1092
2009-06-30	1859
2009-09-30	670
2009-12-31	3328
2010-03-31	1488
2010-06-30	2404
2010-09-30	3324
2010-12-31	3017
2011-03-31	4565
2011-06-30	2222
2011-09-30	1670
2011-12-31	3536
2012-03-31	3410
2012-06-30	1616
2012-09-30	1474
2012-12-31	2013
2013-03-31	1861
2013-06-30	1926
2013-09-30	868
2013-12-31	2788
2014-03-31	2021
2014-06-30	2317
2014-09-30	1088
2014-12-31	885
2015-03-31	1186
2015-06-30	875
2015-09-30	918
2015-12-31	857
2016-03-31	1172
2016-06-30	1347
2016-09-30	1821
2016-12-31	1330
2017-03-31	1809
2017-06-30	1707
2017-09-30	1370
2017-12-31	2170
2018-03-31	2237
2018-06-30	2271
2018-09-30	1558
2018-12-31	1633
2019-03-31	2923
2019-06-30	2616
2019-09-30	1258
2019-12-31	2267
2020-03-31	2216
2020-06-30	1042
2020-09-30	1406
2020-12-31	2529
2021-03-31	2163
2021-06-30	1727
2021-09-30	1737
2021-12-31	3247
2022-03-31	2314
2022-06-30	1281
2022-09-30	1371
2022-12-31	2691
2023-03-31	2560
2023-06-30	2165
2023-09-30	2060