Quarterly US dollars
1997-09-30 1461
1997-12-31 1454
1998-03-31 1385
1998-06-30 1412
1998-09-30 1307
1998-12-31 1029
1999-03-31 862
1999-06-30 816
1999-09-30 829
1999-12-31 5309
2000-03-31 4884
2000-06-30 5971
2000-09-30 9545
2000-12-31 10286
2001-03-31 7005
2001-06-30 7017
2001-09-30 7433
2001-12-31 6698
2002-03-31 4529
2002-06-30 5246
2002-09-30 5154
2002-12-31 5128
2003-03-31 5139
2003-06-30 4960
2003-09-30 6606
2003-12-31 5428
2004-03-31 5527
2004-06-30 5065
2004-09-30 4797
2004-12-31 5691
2005-03-31 4827
2005-06-30 4320
2005-09-30 4150
2005-12-31 4039
2006-03-31 3888
2006-06-30 3598
2006-09-30 3533
2006-12-31 4063
2007-03-31 4207
2007-06-30 3772
2007-09-30 4310
2007-12-31 4402
2008-03-31 7053
2008-06-30 7453
2008-09-30 7180
2008-12-31 5090
2009-03-31 1668
2009-06-30 1436
2009-09-30 948
2009-12-31 1098
2010-03-31 4500
2010-06-30 2981
2010-09-30 3645
2010-12-31 4711
2011-03-31 4905
2011-06-30 5450
2011-09-30 5638
2011-12-31 6683
2012-03-31 5204
2012-06-30 7132
2012-09-30 5607
2012-12-31 6806
2013-03-31 7083
2013-06-30 5456
2013-09-30 4774
2013-12-31 4017
2014-03-31 5822
2014-06-30 3981
2014-09-30 4676
2014-12-31 4927
2015-03-31 6696
2015-06-30 4687
2015-09-30 9013
2015-12-31 9433
2016-03-31 7663
2016-06-30 8777
2016-09-30 12894
2016-12-31 11074
2017-03-31 8457
2017-06-30 5500
2017-09-30 7532
2017-12-31 10824
2018-03-31 8944
2018-06-30 12046
2018-09-30 11549
2018-12-31 9645
2019-03-31 7564
2019-06-30 14087
2019-09-30 9623
2019-12-31 9986
2020-03-31 8874
2020-06-30 11823
2020-09-30 9693
2020-12-31 7461
2021-03-31 13651
2021-06-30 13139
2021-09-30 10560
2021-12-31 9431
2022-03-31 11245
2022-06-30 7511
2022-09-30 6321
2022-12-31 10968
2023-03-31 11582
2023-06-30 8945
2023-09-30 10185
2023-12-31 11018