Quarter	US dollars
2004-12-31	1073
2005-03-31	1630
2005-09-30	1210
2008-03-31	3780
2008-06-30	3427
2008-09-30	3049
2008-12-31	2221
2009-03-31	2236
2009-06-30	2208
2009-09-30	2309
2009-12-31	2322
2010-03-31	2487
2010-06-30	1917
2010-09-30	2541
2010-12-31	2699
2011-03-31	2592
2011-06-30	2013
2011-12-31	1817
2012-06-30	2119
2012-09-30	1859
2013-03-31	1385
2013-06-30	1498
2014-03-31	1671
2014-06-30	1559
2015-03-31	2205
2015-06-30	2068
2015-09-30	3025
2015-12-31	2313
2016-03-31	2230
2016-06-30	2095
2016-09-30	2718
2016-12-31	3572
2017-03-31	3553
2017-06-30	2989
2017-09-30	3856
2017-12-31	4402
2018-03-31	2916
2018-06-30	2565
2018-09-30	3419
2018-12-31	2198
2019-03-31	2042
2019-06-30	1812
2019-09-30	2214
2019-12-31	1933
2020-03-31	1411
2020-06-30	1106
2020-09-30	1043
2020-12-31	1894
2021-03-31	1669
2021-06-30	1697
2021-09-30	1863
2021-12-31	2113
2022-03-31	2218
2022-06-30	3154
2022-09-30	3183
2022-12-31	2789
2023-03-31	3976
2023-06-30	2773
2023-09-30	2414