Quarter	US dollars
2004-12-31	1964
2005-03-31	1603
2005-06-30	1296
2005-09-30	1213
2005-12-31	790
2006-03-31	624
2006-06-30	588
2006-09-30	1274
2006-12-31	2423
2007-03-31	2858
2007-06-30	1148
2007-09-30	1039
2007-12-31	747
2008-03-31	1016
2008-06-30	1280
2008-09-30	945
2008-12-31	959
2009-03-31	926
2009-06-30	1001
2009-09-30	868
2009-12-31	759
2010-03-31	845
2010-06-30	1344
2010-09-30	1190
2010-12-31	946
2011-03-31	1003
2011-06-30	922
2011-09-30	1246
2011-12-31	1209
2012-03-31	2843
2012-06-30	2049
2012-09-30	2639
2012-12-31	2829
2013-03-31	2635
2013-06-30	2484
2013-09-30	2052
2013-12-31	1883
2014-03-31	2092
2014-06-30	2240
2014-09-30	2897
2014-12-31	2880
2015-03-31	3228
2015-06-30	2631
2015-09-30	3141
2015-12-31	2673
2016-03-31	2096
2016-06-30	1585
2016-09-30	1308
2016-12-31	2053
2017-03-31	2041
2017-06-30	2359
2017-09-30	1709
2017-12-31	2002
2018-03-31	1368
2018-06-30	1566
2018-09-30	1373
2018-12-31	1571
2019-03-31	2203
2019-06-30	1605
2019-09-30	1085
2019-12-31	794
2020-03-31	987
2020-06-30	1568
2020-09-30	2444
2020-12-31	2147
2021-03-31	1694
2021-06-30	2024
2021-09-30	2072
2021-12-31	3054
2022-03-31	2650
2022-06-30	3032
2022-09-30	2193
2022-12-31	2172
2023-03-31	3183
2023-06-30	2593
2023-09-30	2163