Quarter	US dollars
2004-12-31	937
2005-03-31	911
2005-06-30	1022
2005-09-30	1106
2005-12-31	1051
2006-03-31	1067
2006-06-30	1457
2006-09-30	1592
2006-12-31	1605
2007-03-31	1516
2007-06-30	1509
2007-09-30	1210
2007-12-31	1254
2008-03-31	1952
2008-06-30	1331
2008-09-30	1285
2008-12-31	1078
2009-03-31	1093
2009-06-30	1021
2009-09-30	1220
2009-12-31	1148
2010-03-31	1251
2010-06-30	1546
2010-09-30	1604
2010-12-31	1658
2011-03-31	1805
2011-06-30	684
2011-09-30	701
2011-12-31	572
2012-03-31	614
2012-06-30	673
2012-09-30	675
2012-12-31	503
2013-03-31	625
2013-06-30	572
2013-09-30	434
2013-12-31	488
2014-03-31	547
2014-06-30	739
2014-09-30	657
2014-12-31	1133
2015-03-31	965
2015-06-30	1071
2015-09-30	895
2015-12-31	880
2016-03-31	1149
2016-06-30	547
2016-09-30	739
2016-12-31	915
2017-03-31	724
2017-06-30	1256
2017-09-30	1124
2017-12-31	1193
2018-03-31	1466
2018-06-30	1349
2018-09-30	1133
2018-12-31	1053
2019-03-31	1686
2019-06-30	1434
2019-09-30	1148
2019-12-31	1258
2020-03-31	1286
2020-06-30	1099
2020-09-30	937
2020-12-31	912
2021-03-31	879
2021-06-30	1081
2021-09-30	1142
2021-12-31	968
2022-03-31	1058
2022-06-30	988
2022-09-30	827
2022-12-31	908
2023-03-31	1041
2023-06-30	817
2023-09-30	529