Quarter	US dollars
2004-12-31	1397941
2005-03-31	1477185
2005-06-30	1528709
2005-09-30	1648440
2005-12-31	1624594
2006-03-31	1851449
2006-06-30	1879804
2006-09-30	2006587
2006-12-31	2081158
2007-03-31	2248043
2007-06-30	2338405
2007-09-30	2576553
2007-12-31	2615855
2008-03-31	2860728
2008-06-30	2782948
2008-09-30	2901883
2008-12-31	2434504
2009-03-31	2414613
2009-06-30	2418112
2009-09-30	2403738
2009-12-31	2324811
2010-03-31	2373931
2010-06-30	2369701
2010-09-30	2441275
2010-12-31	2409467
2011-03-31	2441853
2011-06-30	2513313
2011-09-30	2416657
2011-12-31	2308213
2012-03-31	2376525
2012-06-30	2322827
2012-09-30	2353416
2012-12-31	2313854
2013-03-31	2244578
2013-06-30	2228307
2013-09-30	2259256
2013-12-31	2232607
2014-03-31	2202175
2014-06-30	2233915
2014-09-30	2148777
2014-12-31	2097428
2015-03-31	2061525
2015-06-30	1993136
2015-09-30	1791592
2015-12-31	1738827
2016-03-31	1748161
2016-06-30	1772362
2016-09-30	1747260
2016-12-31	1723402
2017-03-31	1853592
2017-06-30	1883723
2017-09-30	1891732
2017-12-31	1979865
2018-03-31	1995923
2018-06-30	1921514
2018-09-30	1900860
2018-12-31	1901294
2019-03-31	1980058
2019-06-30	2062378
2019-09-30	2091755
2019-12-31	2087666
2020-03-31	2204920
2020-06-30	2131991
2020-09-30	2151828
2020-12-31	2173652
2021-03-31	2151410
2021-06-30	2246532
2021-09-30	2252575
2021-12-31	2313571
2022-03-31	2298001
2022-06-30	2237275
2022-09-30	2224909
2022-12-31	2203286
2023-03-31	2271440
2023-06-30	2353022
2023-09-30	2343075