Quarter	US dollars
2004-12-31	1160735
2005-03-31	1258037
2005-06-30	1320185
2005-09-30	1449662
2005-12-31	1458952
2006-03-31	1584721
2006-06-30	1620013
2006-09-30	1681741
2006-12-31	1731471
2007-03-31	1851039
2007-06-30	1908036
2007-09-30	2123831
2007-12-31	2105823
2008-03-31	2323890
2008-06-30	2243251
2008-09-30	2401471
2008-12-31	2033170
2009-03-31	2062275
2009-06-30	2123119
2009-09-30	2130432
2009-12-31	2097556
2010-03-31	2270098
2010-06-30	2288650
2010-09-30	2332986
2010-12-31	2264605
2011-03-31	2380267
2011-06-30	2439236
2011-09-30	2383286
2011-12-31	2343713
2012-03-31	2532076
2012-06-30	2461624
2012-09-30	2434533
2012-12-31	2474556
2013-03-31	2318924
2013-06-30	2358017
2013-09-30	2321792
2013-12-31	2239190
2014-03-31	2280755
2014-06-30	2250358
2014-09-30	2190718
2014-12-31	2139426
2015-03-31	2059332
2015-06-30	2045110
2015-09-30	1865738
2015-12-31	1794123
2016-03-31	1827615
2016-06-30	1900573
2016-09-30	1847797
2016-12-31	1796004
2017-03-31	1902186
2017-06-30	1916160
2017-09-30	1991122
2017-12-31	2015822
2018-03-31	1992447
2018-06-30	1910156
2018-09-30	1936853
2018-12-31	1933045
2019-03-31	1942157
2019-06-30	1985779
2019-09-30	1941333
2019-12-31	1963089
2020-03-31	2101671
2020-06-30	2132854
2020-09-30	2177857
2020-12-31	2188227
2021-03-31	2227095
2021-06-30	2332757
2021-09-30	2331157
2021-12-31	2290209
2022-03-31	2342943
2022-06-30	2311152
2022-09-30	2254650
2022-12-31	2249618
2023-03-31	2330574
2023-06-30	2379784
2023-09-30	2318648