Quarterly US dollars
1999-03-31 12746
1999-06-30 13410
1999-09-30 14913
1999-12-31 12977
2000-03-31 12292
2000-06-30 10724
2000-09-30 10970
2000-12-31 11779
2001-03-31 12375
2001-06-30 11202
2001-09-30 11996
2001-12-31 15246
2002-03-31 15521
2002-06-30 18571
2002-09-30 16042
2002-12-31 16982
2003-03-31 19827
2003-06-30 22421
2003-09-30 28329
2003-12-31 29013
2004-03-31 36721
2004-06-30 34483
2004-09-30 34667
2004-12-31 31537
2005-03-31 36729
2005-06-30 45296
2005-09-30 44539
2005-12-31 35351
2006-03-31 44497
2006-06-30 41858
2006-09-30 43638
2006-12-31 38048
2007-03-31 47760
2007-06-30 56351
2007-09-30 49980
2007-12-31 39452
2008-03-31 63369
2008-06-30 64108
2008-09-30 49082
2008-12-31 39496
2009-03-31 42610
2009-06-30 37264
2009-09-30 33089
2009-12-31 28487
2010-03-31 36729
2010-06-30 32143
2010-09-30 35414
2010-12-31 26307
2011-03-31 40567
2011-06-30 44408
2011-09-30 47738
2011-12-31 39665
2012-03-31 44553
2012-06-30 47070
2012-09-30 44595
2012-12-31 53884
2013-03-31 47057
2013-06-30 51565
2013-09-30 46171
2013-12-31 44479
2014-03-31 38516
2014-06-30 40060
2014-09-30 36617
2014-12-31 30340
2015-03-31 36428
2015-06-30 43513
2015-09-30 40149
2015-12-31 33070
2016-03-31 29669
2016-06-30 33506
2016-09-30 34541
2016-12-31 31530
2017-03-31 31946
2017-06-30 33427
2017-09-30 33546
2017-12-31 32306
2018-03-31 34897
2018-06-30 39247
2018-09-30 40185
2018-12-31 40528
2019-03-31 38294
2019-06-30 43170
2019-09-30 43280
2019-12-31 47930
2020-03-31 50455
2020-06-30 47893
2020-09-30 48443
2020-12-31 46811
2021-03-31 43562
2021-06-30 50987
2021-09-30 62665
2021-12-31 61102
2022-03-31 62858
2022-06-30 58097
2022-09-30 45452
2022-12-31 43924
2023-03-31 28986
2023-06-30 30211
2023-09-30 28272