Quarter	US dollars
2004-12-31	132
2005-03-31	161
2005-06-30	224
2005-09-30	242
2005-12-31	1993
2006-03-31	461
2006-06-30	806
2006-09-30	882
2006-12-31	1069
2007-03-31	930
2007-06-30	897
2007-09-30	909
2007-12-31	874
2008-03-31	1854
2008-06-30	2301
2008-09-30	2459
2008-12-31	4843
2009-03-31	3680
2009-06-30	3272
2009-09-30	2348
2009-12-31	2230
2010-03-31	2820
2010-06-30	3645
2010-09-30	4093
2010-12-31	3767
2011-03-31	1712
2011-06-30	3357
2011-09-30	4063
2011-12-31	2540
2012-03-31	2437
2012-06-30	2794
2012-09-30	2920
2012-12-31	1381
2013-03-31	1778
2013-06-30	1040
2013-09-30	1351
2013-12-31	1355
2014-03-31	1027
2014-06-30	1134
2014-09-30	1190
2014-12-31	1408
2015-03-31	1323
2015-06-30	1287
2015-09-30	1165
2015-12-31	985
2016-03-31	1711
2016-06-30	1166
2016-09-30	1742
2016-12-31	2045
2017-03-31	2451
2017-06-30	2141
2017-09-30	1829
2017-12-31	2068
2018-03-31	2203
2018-06-30	1889
2018-09-30	2062
2018-12-31	2173
2019-03-31	1820
2019-06-30	2000
2019-09-30	2200
2019-12-31	2110
2020-03-31	4212
2020-06-30	3818
2020-09-30	2828
2020-12-31	2704
2021-03-31	2022
2021-06-30	2248
2021-09-30	2077
2021-12-31	2031
2022-03-31	1562
2022-06-30	1917
2022-09-30	2130
2022-12-31	2166
2023-03-31	1929
2023-06-30	2073
2023-09-30	1919