Quarter	US dollars
2004-12-31	230
2005-03-31	221
2005-06-30	263
2005-09-30	248
2005-12-31	273
2006-03-31	260
2006-06-30	318
2006-09-30	295
2006-12-31	317
2007-03-31	347
2007-06-30	351
2007-09-30	295
2007-12-31	565
2008-03-31	922
2008-06-30	965
2008-09-30	798
2008-12-31	592
2009-03-31	1000
2009-06-30	1087
2009-09-30	1036
2009-12-31	1994
2010-03-31	1571
2010-06-30	1435
2010-09-30	1580
2010-12-31	1265
2011-03-31	1627
2011-06-30	1649
2011-09-30	1798
2011-12-31	1976
2012-03-31	2030
2012-06-30	1078
2012-09-30	1098
2012-12-31	1112
2013-03-31	1014
2013-06-30	693
2013-09-30	374
2013-12-31	440
2014-03-31	474
2014-06-30	400
2014-09-30	1083
2014-12-31	1310
2015-03-31	1280
2015-06-30	1434
2015-09-30	1298
2015-12-31	1178
2016-03-31	1068
2016-06-30	1014
2016-09-30	1174
2016-12-31	1180
2017-03-31	1157
2017-06-30	1328
2017-09-30	1356
2017-12-31	1516
2018-03-31	1256
2018-06-30	1464
2018-09-30	1474
2018-12-31	1297
2019-03-31	1351
2019-06-30	1345
2019-09-30	1485
2019-12-31	1668
2020-03-31	1650
2020-06-30	1586
2020-09-30	1656
2020-12-31	1740
2021-03-31	1770
2021-06-30	1697
2021-09-30	1572
2021-12-31	1503
2022-03-31	1017
2022-06-30	944
2022-09-30	1009
2022-12-31	862
2023-03-31	856
2023-06-30	881
2023-09-30	1000