Quarter	US dollars
2004-12-31	21
2005-03-31	15
2005-06-30	9
2005-09-30	41
2005-12-31	64
2006-03-31	73
2006-06-30	46
2006-09-30	52
2006-12-31	278
2007-03-31	830
2007-06-30	999
2007-09-30	1045
2007-12-31	1059
2008-03-31	1739
2008-06-30	1178
2008-09-30	1224
2008-12-31	568
2009-03-31	414
2009-06-30	199
2009-09-30	267
2009-12-31	283
2010-03-31	243
2010-06-30	343
2010-09-30	304
2010-12-31	376
2011-03-31	353
2011-06-30	389
2011-09-30	696
2011-12-31	804
2012-03-31	928
2012-06-30	1065
2012-09-30	977
2013-06-30	1131
2013-09-30	1103
2013-12-31	1159
2014-03-31	1107
2014-06-30	1436
2014-09-30	1654
2014-12-31	1548
2015-03-31	1617
2015-06-30	1771
2015-09-30	1595
2015-12-31	1338
2016-03-31	1431
2016-06-30	1217
2016-09-30	1437
2016-12-31	1415
2017-03-31	1875
2017-06-30	2175
2017-09-30	2148
2017-12-31	2271
2018-03-31	2235
2018-06-30	2359
2018-09-30	2435
2018-12-31	2341
2019-03-31	2672
2019-06-30	2476
2019-09-30	2623
2019-12-31	2264
2020-03-31	2118
2020-06-30	1950
2020-09-30	2107
2020-12-31	2243
2021-03-31	3006
2021-06-30	3710
2021-09-30	3995
2021-12-31	3179
2022-03-31	3139
2022-06-30	3210
2022-09-30	3128
2022-12-31	2723
2023-03-31	2734
2023-06-30	2331
2023-09-30	2272