Quarter	US dollars
2004-12-31	294
2005-03-31	344
2005-06-30	860
2005-09-30	1120
2005-12-31	1681
2006-03-31	2734
2006-06-30	1775
2006-09-30	1892
2006-12-31	1693
2007-03-31	2452
2007-06-30	1689
2007-09-30	3113
2007-12-31	2104
2008-03-31	3450
2008-06-30	2032
2008-09-30	2053
2008-12-31	1886
2009-03-31	1962
2009-06-30	2414
2009-09-30	2471
2009-12-31	2832
2010-03-31	3919
2010-06-30	2077
2010-09-30	2077
2010-12-31	1523
2011-03-31	2837
2011-06-30	2251
2011-09-30	2594
2011-12-31	1390
2012-03-31	1267
2012-06-30	1743
2012-09-30	2206
2012-12-31	2121
2013-03-31	3070
2013-06-30	3581
2013-09-30	2395
2013-12-31	2562
2014-03-31	2774
2014-06-30	3322
2014-09-30	3442
2014-12-31	2753
2015-03-31	2512
2015-06-30	2589
2015-09-30	2002
2015-12-31	2309
2016-03-31	2549
2016-06-30	2075
2016-09-30	2918
2016-12-31	2589
2017-03-31	2594
2017-06-30	1758
2017-09-30	2638
2017-12-31	2679
2018-03-31	2989
2018-06-30	2122
2018-09-30	1411
2018-12-31	1322
2019-03-31	2424
2019-06-30	1287
2019-09-30	1467
2019-12-31	2009
2020-03-31	1870
2020-06-30	2626
2020-09-30	2436
2020-12-31	2771
2021-03-31	3125
2021-06-30	2968
2021-09-30	2786
2021-12-31	3462
2022-03-31	3314
2022-06-30	3996
2022-09-30	3357
2022-12-31	3730
2023-03-31	4770
2023-06-30	3722
2023-09-30	3953