Quarter	US dollars
2004-12-31	14514
2005-03-31	15891
2005-06-30	13426
2005-09-30	16407
2005-12-31	19180
2006-03-31	29204
2006-06-30	26552
2006-09-30	24367
2006-12-31	31860
2007-03-31	36059
2007-06-30	37588
2007-09-30	35302
2007-12-31	39280
2008-03-31	47885
2008-06-30	39486
2008-09-30	41008
2008-12-31	23508
2009-03-31	24631
2009-06-30	30201
2009-09-30	30713
2009-12-31	25419
2010-03-31	34828
2010-06-30	24421
2010-09-30	26134
2010-12-31	22326
2011-03-31	24616
2011-06-30	26457
2011-09-30	16095
2011-12-31	18813
2012-03-31	24764
2012-06-30	19377
2012-09-30	18691
2012-12-31	23321
2013-03-31	23257
2013-06-30	30786
2013-09-30	43452
2013-12-31	44986
2014-03-31	51736
2014-06-30	54124
2014-09-30	47863
2014-12-31	36996
2015-03-31	39119
2015-06-30	29011
2015-09-30	26242
2015-12-31	20846
2016-03-31	19767
2016-06-30	27211
2016-09-30	26074
2016-12-31	25996
2017-03-31	27083
2017-06-30	39551
2017-09-30	43984
2017-12-31	51780
2018-03-31	48476
2018-06-30	42510
2018-09-30	52731
2018-12-31	63908
2019-03-31	60410
2019-06-30	64691
2019-09-30	55298
2019-12-31	54165
2020-03-31	79839
2020-06-30	67098
2020-09-30	68528
2020-12-31	59526
2021-03-31	73807
2021-06-30	63395
2021-09-30	73597
2021-12-31	83385
2022-03-31	75060
2022-06-30	90454
2022-09-30	91171
2022-12-31	98292
2023-03-31	101279
2023-06-30	101908
2023-09-30	100876