Quarter	US dollars
2004-12-31	1261
2005-03-31	1229
2005-06-30	1278
2005-09-30	1222
2005-12-31	1238
2006-03-31	1242
2006-06-30	1241
2006-09-30	1184
2006-12-31	1252
2007-03-31	1216
2007-06-30	1900
2007-09-30	1793
2007-12-31	1991
2008-03-31	2643
2008-06-30	3007
2008-09-30	2800
2008-12-31	2825
2009-03-31	3085
2009-06-30	3114
2009-09-30	3200
2009-12-31	2865
2010-03-31	2742
2010-06-30	3019
2010-09-30	2926
2010-12-31	2743
2011-03-31	2542
2011-06-30	2612
2011-09-30	2773
2011-12-31	3216
2012-03-31	2738
2012-06-30	3013
2012-09-30	2807
2012-12-31	2752
2013-03-31	2675
2013-06-30	2469
2013-09-30	2463
2013-12-31	2884
2014-03-31	2661
2014-06-30	2653
2014-09-30	2628
2014-12-31	2683
2015-03-31	2876
2015-06-30	2496
2015-09-30	2427
2015-12-31	2291
2016-03-31	2191
2016-06-30	2166
2016-09-30	2354
2016-12-31	1839
2017-03-31	2190
2017-06-30	2540
2017-09-30	2632
2017-12-31	2599
2018-03-31	2706
2018-06-30	2675
2018-09-30	1948
2018-12-31	2030
2019-03-31	2627
2019-06-30	2670
2019-09-30	2399
2019-12-31	2680
2020-03-31	2565
2020-06-30	2715
2020-09-30	3270
2020-12-31	2346
2021-03-31	2151
2021-06-30	2207
2021-09-30	2385
2021-12-31	2341
2022-03-31	2473
2022-06-30	3284
2022-09-30	3559
2022-12-31	3339
2023-03-31	3308
2023-06-30	2972
2023-09-30	3057