Quarter	US dollars
2004-12-31	273
2005-03-31	304
2005-06-30	224
2005-09-30	251
2005-12-31	354
2006-03-31	421
2006-06-30	610
2006-09-30	620
2006-12-31	546
2007-03-31	526
2007-06-30	453
2007-09-30	623
2007-12-31	639
2008-03-31	717
2008-06-30	870
2008-09-30	871
2008-12-31	755
2009-03-31	762
2009-06-30	753
2009-09-30	761
2009-12-31	594
2010-03-31	535
2010-06-30	703
2010-09-30	676
2010-12-31	778
2011-03-31	776
2011-06-30	862
2011-09-30	1245
2011-12-31	1285
2012-03-31	1170
2012-06-30	1267
2012-09-30	1324
2014-03-31	1944
2014-06-30	2082
2014-09-30	2146
2014-12-31	2230
2015-03-31	2560
2015-06-30	2644
2015-09-30	2410
2015-12-31	2647
2016-03-31	2660
2016-06-30	2697
2016-09-30	2700
2016-12-31	2915
2017-03-31	3087
2017-06-30	3353
2017-09-30	3414
2017-12-31	3378
2018-03-31	3378
2018-06-30	3443
2018-09-30	3323
2018-12-31	3260
2019-03-31	3383
2019-06-30	3612
2019-09-30	3521
2019-12-31	3439
2020-03-31	3520
2020-06-30	3499
2020-09-30	3457
2020-12-31	3253
2021-03-31	3373
2021-06-30	3481
2021-09-30	3502
2021-12-31	3419
2022-03-31	3448
2022-06-30	3285
2022-09-30	3372
2022-12-31	3165
2023-03-31	3336
2023-06-30	3330
2023-09-30	3418