Quarter	US dollars
2004-12-31	547
2005-03-31	569
2005-06-30	522
2005-09-30	564
2005-12-31	659
2006-03-31	734
2006-06-30	832
2006-09-30	534
2006-12-31	847
2007-03-31	755
2007-06-30	979
2007-09-30	988
2007-12-31	1095
2008-03-31	1123
2008-06-30	965
2008-09-30	1267
2008-12-31	1242
2009-03-31	1050
2009-06-30	1136
2009-09-30	1401
2009-12-31	1852
2010-03-31	1605
2010-06-30	1427
2010-09-30	1612
2010-12-31	1782
2011-03-31	2111
2011-06-30	2721
2011-09-30	2885
2011-12-31	3197
2012-03-31	3671
2012-06-30	4127
2012-09-30	3550
2012-12-31	3719
2013-03-31	2775
2013-06-30	2092
2013-09-30	2416
2013-12-31	2712
2014-03-31	2174
2014-06-30	2250
2014-09-30	2437
2014-12-31	2065
2015-03-31	1586
2015-06-30	1650
2015-09-30	1294
2015-12-31	1236
2016-03-31	1398
2016-06-30	1618
2016-09-30	1471
2016-12-31	1540
2017-03-31	1441
2017-06-30	1354
2017-09-30	1723
2017-12-31	1881
2018-03-31	1423
2018-06-30	1539
2018-09-30	1509
2018-12-31	1691
2019-03-31	1740
2019-06-30	2063
2019-09-30	2035
2019-12-31	2247
2020-03-31	2125
2020-06-30	1509
2020-09-30	1316
2020-12-31	704
2021-03-31	378
2021-06-30	415
2021-09-30	746
2021-12-31	659
2022-03-31	840
2022-06-30	1347
2022-09-30	1580
2022-12-31	1732
2023-03-31	1565
2023-06-30	1630
2023-09-30	1508