Quarter	US dollars
2004-12-31	1206
2005-03-31	1216
2005-06-30	1129
2005-09-30	1132
2005-12-31	975
2006-03-31	954
2006-06-30	1052
2006-09-30	1412
2006-12-31	2697
2007-03-31	2534
2007-06-30	2245
2007-09-30	2115
2007-12-31	2112
2008-03-31	3983
2008-06-30	4804
2008-09-30	5371
2008-12-31	5257
2009-03-31	2638
2009-06-30	2388
2009-09-30	2671
2009-12-31	2477
2010-03-31	2712
2010-06-30	3984
2010-09-30	4964
2010-12-31	6060
2011-03-31	4363
2011-06-30	4757
2011-09-30	4047
2011-12-31	3876
2012-03-31	3794
2012-06-30	2913
2012-09-30	1917
2012-12-31	2635
2013-03-31	1898
2013-06-30	1961
2013-09-30	1963
2013-12-31	1764
2014-03-31	2526
2014-06-30	3542
2014-09-30	3171
2014-12-31	3933
2015-03-31	4300
2015-06-30	4429
2015-09-30	4140
2015-12-31	3674
2016-03-31	3248
2016-06-30	3416
2016-09-30	3704
2016-12-31	3840
2017-03-31	5890
2017-06-30	4721
2017-09-30	5150
2017-12-31	6243
2018-03-31	6393
2018-06-30	5997
2018-09-30	7131
2018-12-31	7651
2019-03-31	8257
2019-06-30	8169
2019-09-30	7611
2019-12-31	8214
2020-03-31	7644
2020-06-30	7916
2020-09-30	8602
2020-12-31	7338
2021-03-31	8567
2021-06-30	8721
2021-09-30	8832
2021-12-31	8880
2022-03-31	6780
2022-06-30	6852
2022-09-30	7468
2022-12-31	7382
2023-03-31	10115
2023-06-30	9394
2023-09-30	8074