Quarter	US dollars
2004-12-31	488
2005-03-31	554
2005-06-30	405
2005-09-30	428
2005-12-31	470
2006-03-31	642
2006-06-30	736
2006-09-30	727
2006-12-31	818
2007-03-31	579
2007-06-30	686
2007-09-30	676
2007-12-31	480
2008-06-30	641
2008-12-31	660
2009-12-31	794
2010-03-31	672
2010-06-30	892
2010-09-30	1145
2010-12-31	1287
2011-03-31	1298
2011-06-30	1182
2012-12-31	605
2013-03-31	310
2013-06-30	450
2013-12-31	336
2014-03-31	303
2014-06-30	297
2014-09-30	529
2014-12-31	323
2015-03-31	264
2015-06-30	173
2015-09-30	159
2015-12-31	113
2016-03-31	118
2016-06-30	113
2016-09-30	135
2016-12-31	122
2017-03-31	69
2017-06-30	81
2017-09-30	134
2017-12-31	139
2018-03-31	149
2018-06-30	129
2018-09-30	74
2018-12-31	61
2019-03-31	56
2019-06-30	76
2019-09-30	80
2019-12-31	61
2020-03-31	133
2020-06-30	150
2020-09-30	162
2020-12-31	164
2021-03-31	112
2021-06-30	28
2021-09-30	32
2021-12-31	80
2022-03-31	120
2022-06-30	127
2022-09-30	84
2022-12-31	103
2023-03-31	78
2023-06-30	77
2023-09-30	74