Quarter	US dollars
2004-12-31	561
2005-03-31	647
2005-06-30	466
2005-09-30	444
2005-12-31	486
2006-03-31	657
2006-06-30	751
2006-09-30	742
2006-12-31	863
2007-03-31	624
2007-06-30	730
2007-09-30	721
2007-12-31	492
2008-03-31	421
2008-06-30	643
2008-09-30	1151
2008-12-31	661
2009-03-31	507
2009-06-30	583
2009-09-30	721
2009-12-31	798
2010-03-31	675
2010-06-30	904
2010-09-30	1153
2010-12-31	1315
2011-03-31	1303
2011-06-30	1209
2011-09-30	813
2011-12-31	595
2012-03-31	698
2012-06-30	547
2012-09-30	636
2012-12-31	639
2013-03-31	336
2013-06-30	476
2013-09-30	416
2013-12-31	364
2014-03-31	333
2014-06-30	330
2014-09-30	553
2014-12-31	350
2015-03-31	290
2015-06-30	175
2015-09-30	161
2015-12-31	114
2016-03-31	118
2016-06-30	113
2016-09-30	135
2016-12-31	122
2017-03-31	80
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