Quarter	US dollars
2004-12-31	403
2005-03-31	454
2005-06-30	462
2005-09-30	416
2005-12-31	379
2006-03-31	363
2006-06-30	329
2006-09-30	316
2006-12-31	515
2007-03-31	573
2007-06-30	610
2007-09-30	674
2007-12-31	850
2008-03-31	1691
2008-06-30	1041
2008-09-30	939
2008-12-31	806
2009-03-31	1134
2009-06-30	1174
2009-09-30	1017
2009-12-31	1105
2010-03-31	1286
2010-06-30	937
2010-09-30	764
2010-12-31	847
2011-03-31	846
2011-06-30	1065
2011-09-30	1134
2011-12-31	1132
2012-03-31	1213
2012-06-30	1747
2012-09-30	2618
2012-12-31	2150
2013-03-31	3029
2013-06-30	3108
2013-09-30	2575
2013-12-31	2471
2014-03-31	2544
2014-06-30	2221
2014-09-30	1736
2014-12-31	2068
2015-03-31	2233
2015-06-30	2705
2015-09-30	2420
2015-12-31	2235
2016-03-31	1930
2016-06-30	2259
2016-09-30	2258
2016-12-31	2523
2017-03-31	2396
2017-06-30	2963
2017-09-30	2837
2017-12-31	2994
2018-03-31	2822
2018-06-30	2678
2018-09-30	2660
2018-12-31	2666
2019-03-31	1686
2019-06-30	1880
2019-09-30	1988
2019-12-31	2020
2020-03-31	1518
2020-06-30	1996
2020-09-30	2574
2020-12-31	2465
2021-03-31	2879
2021-06-30	2753
2021-09-30	2721
2021-12-31	2869
2022-03-31	2780
2022-06-30	2581
2022-09-30	2615
2022-12-31	1909
2023-03-31	2519
2023-06-30	2258
2023-09-30	365