Quarter	US dollars
2004-12-31	334
2005-03-31	372
2005-06-30	57
2005-09-30	92
2005-12-31	50
2006-03-31	76
2006-06-30	54
2006-09-30	105
2006-12-31	104
2007-03-31	122
2007-06-30	78
2007-09-30	31
2007-12-31	66
2008-03-31	119
2008-06-30	74
2008-09-30	96
2008-12-31	102
2009-03-31	40
2009-06-30	68
2009-09-30	88
2009-12-31	53
2010-03-31	74
2010-06-30	97
2010-09-30	128
2010-12-31	106
2011-03-31	115
2011-06-30	117
2011-09-30	132
2011-12-31	148
2012-03-31	153
2012-06-30	94
2012-09-30	165
2012-12-31	176
2013-03-31	117
2013-06-30	146
2013-09-30	189
2013-12-31	236
2014-03-31	125
2014-06-30	109
2014-09-30	227
2014-12-31	264
2015-03-31	324
2015-06-30	327
2015-09-30	332
2015-12-31	259
2016-03-31	293
2016-06-30	152
2016-09-30	234
2016-12-31	319
2017-03-31	313
2017-06-30	433
2017-09-30	468
2017-12-31	458
2018-03-31	594
2018-06-30	569
2018-09-30	623
2018-12-31	453
2019-03-31	486
2019-06-30	447
2019-09-30	527
2019-12-31	450
2020-03-31	402
2020-06-30	351
2020-09-30	478
2020-12-31	414
2021-03-31	320
2021-06-30	328
2021-09-30	427
2021-12-31	309
2022-03-31	203
2022-06-30	70
2022-09-30	36
2022-12-31	40
2023-03-31	46
2023-06-30	63
2023-09-30	62