Quarter	US dollars
2004-12-31	392
2005-03-31	376
2005-06-30	398
2005-09-30	302
2005-12-31	340
2006-03-31	369
2006-06-30	383
2006-09-30	370
2006-12-31	526
2007-03-31	504
2007-06-30	648
2007-09-30	685
2007-12-31	774
2008-03-31	431
2008-06-30	549
2008-09-30	487
2008-12-31	417
2009-03-31	562
2009-06-30	591
2009-09-30	555
2009-12-31	426
2010-03-31	391
2010-06-30	482
2010-09-30	496
2010-12-31	518
2011-03-31	595
2011-06-30	697
2011-09-30	1095
2011-12-31	1208
2012-03-31	1063
2012-06-30	925
2012-09-30	974
2012-12-31	926
2013-03-31	1078
2013-06-30	936
2013-09-30	764
2013-12-31	830
2014-03-31	1095
2014-06-30	1176
2014-09-30	1260
2014-12-31	1692
2015-03-31	1310
2015-06-30	1128
2015-09-30	1450
2015-12-31	1467
2016-03-31	1231
2016-06-30	2092
2016-09-30	931
2016-12-31	939
2017-03-31	744
2017-06-30	769
2017-09-30	741
2017-12-31	855
2018-03-31	876
2018-06-30	829
2018-09-30	880
2018-12-31	861
2019-03-31	900
2019-06-30	821
2019-09-30	845
2019-12-31	919
2020-03-31	965
2020-06-30	848
2020-09-30	887
2020-12-31	771
2021-03-31	817
2021-06-30	771
2021-09-30	792
2021-12-31	673
2022-03-31	688
2022-06-30	686
2022-09-30	580
2022-12-31	607
2023-03-31	582
2023-06-30	544
2023-09-30	403