Quarterly US dollars
1999-03-31 1268
1999-06-30 1315
1999-09-30 1341
1999-12-31 1220
2000-03-31 1175
2000-06-30 1189
2000-09-30 1344
2000-12-31 1196
2001-03-31 1131
2001-06-30 1175
2001-09-30 1233
2001-12-31 1262
2002-03-31 1205
2002-06-30 1327
2002-09-30 1420
2002-12-31 1391
2003-03-31 1387
2003-06-30 1491
2003-09-30 1536
2003-12-31 1631
2004-03-31 2232
2004-06-30 1784
2004-09-30 2294
2004-12-31 1972
2005-03-31 1853
2005-06-30 2272
2005-09-30 2435
2005-12-31 2567
2006-03-31 2098
2006-06-30 3285
2006-09-30 2946
2006-12-31 3446
2007-03-31 2851
2007-06-30 3342
2007-09-30 3197
2007-12-31 3363
2008-03-31 3901
2008-06-30 3897
2008-09-30 5189
2008-12-31 3478
2009-03-31 3725
2009-06-30 3778
2009-09-30 3432
2009-12-31 3934
2010-03-31 4365
2010-06-30 4330
2010-09-30 5447
2010-12-31 4781
2011-03-31 6582
2011-06-30 4171
2011-09-30 4664
2011-12-31 4481
2012-03-31 3510
2012-06-30 4286
2012-09-30 4157
2012-12-31 4471
2013-03-31 4604
2013-06-30 5648
2013-09-30 5699
2013-12-31 6182
2014-03-31 6378
2014-06-30 6183
2014-09-30 6528
2014-12-31 7840
2015-03-31 6339
2015-06-30 6473
2015-09-30 6488
2015-12-31 7158
2016-03-31 6541
2016-06-30 6735
2016-09-30 6396
2016-12-31 5545
2017-03-31 5619
2017-06-30 5761
2017-09-30 6527
2017-12-31 6532
2018-03-31 6487
2018-06-30 6048
2018-09-30 6402
2018-12-31 6618
2019-03-31 5037
2019-06-30 4662
2019-09-30 4458
2019-12-31 4451
2020-03-31 4676
2020-06-30 4824
2020-09-30 5248
2020-12-31 5982
2021-03-31 6561
2021-06-30 7320
2021-09-30 6264
2021-12-31 6208
2022-03-31 6321
2022-06-30 4652
2022-09-30 4420
2022-12-31 4169
2023-03-31 6750
2023-06-30 6550
2023-09-30 6379