Quarter	US dollars
2004-12-31	1241690
2005-03-31	1336863
2005-06-30	1389049
2005-09-30	1520094
2005-12-31	1522998
2006-03-31	1673775
2006-06-30	1709169
2006-09-30	1788736
2006-12-31	1832650
2007-03-31	2030579
2007-06-30	2072706
2007-09-30	2298446
2007-12-31	2248881
2008-03-31	2493525
2008-06-30	2404296
2008-09-30	2558324
2008-12-31	2198576
2009-03-31	2223033
2009-06-30	2295249
2009-09-30	2287703
2009-12-31	2286224
2010-03-31	2446474
2010-06-30	2495150
2010-09-30	2552583
2010-12-31	2507886
2011-03-31	2570199
2011-06-30	2633234
2011-09-30	2593332
2011-12-31	2545162
2012-03-31	2748152
2012-06-30	2635265
2012-09-30	2596449
2012-12-31	2605190
2013-03-31	2465341
2013-06-30	2459790
2013-09-30	2433927
2013-12-31	2351121
2014-03-31	2382418
2014-06-30	2347283
2014-09-30	2288387
2014-12-31	2230900
2015-03-31	2152840
2015-06-30	2122083
2015-09-30	1923340
2015-12-31	1843724
2016-03-31	1905995
2016-06-30	2020635
2016-09-30	1958899
2016-12-31	1893539
2017-03-31	2007116
2017-06-30	1989250
2017-09-30	2089325
2017-12-31	2112217
2018-03-31	2095680
2018-06-30	2034867
2018-09-30	2053000
2018-12-31	2050800
2019-03-31	2077391
2019-06-30	2012241
2019-09-30	1955406
2019-12-31	1991824
2020-03-31	2114179
2020-06-30	2130703
2020-09-30	2197876
2020-12-31	2157515
2021-03-31	2186658
2021-06-30	2306196
2021-09-30	2340439
2021-12-31	2276839
2022-03-31	2330415
2022-06-30	2296610
2022-09-30	2239865
2022-12-31	2241775
2023-03-31	2341701
2023-06-30	2383612
2023-09-30	2323537