Quarterly US dollars
1999-09-30 20640
1999-12-31 28902
2000-03-31 22053
2000-06-30 27334
2000-09-30 29375
2000-12-31 34514
2001-03-31 29800
2001-06-30 29274
2001-09-30 29237
2001-12-31 25886
2002-03-31 25270
2002-06-30 28527
2002-09-30 27929
2002-12-31 26793
2003-03-31 26608
2003-06-30 25643
2003-09-30 28075
2003-12-31 28127
2004-03-31 27576
2004-06-30 27308
2004-09-30 27274
2004-12-31 30281
2005-03-31 29382
2005-06-30 29010
2005-09-30 28065
2005-12-31 27367
2006-03-31 28123
2006-06-30 27116
2006-09-30 29298
2006-12-31 30765
2007-03-31 29671
2007-06-30 30000
2007-09-30 28744
2007-12-31 33272
2008-03-31 34252
2008-06-30 34269
2008-09-30 27417
2008-12-31 25884
2009-03-31 21016
2009-06-30 22877
2009-09-30 33720
2009-12-31 33432
2010-03-31 36208
2010-06-30 36362
2010-09-30 39655
2010-12-31 40435
2011-03-31 44368
2011-06-30 48616
2011-09-30 48682
2011-12-31 50236
2012-03-31 51075
2012-06-30 53501
2012-09-30 54232
2012-12-31 55866
2013-03-31 55853
2013-06-30 57821
2013-09-30 60326
2013-12-31 63185
2014-03-31 66955
2014-06-30 67333
2014-09-30 65433
2014-12-31 68038
2015-03-31 85259
2015-06-30 85810
2015-09-30 93085
2015-12-31 94653
2016-03-31 99610
2016-06-30 103879
2016-09-30 106665
2016-12-31 99474
2017-03-31 105133
2017-06-30 109439
2017-09-30 109559
2017-12-31 112944
2018-03-31 114751
2018-06-30 112124
2018-09-30 109764
2018-12-31 122320
2019-03-31 113800
2019-06-30 105037
2019-09-30 95565
2019-12-31 111001
2020-03-31 97276
2020-06-30 95678
2020-09-30 87236
2020-12-31 95306
2021-03-31 88224
2021-06-30 85785
2021-09-30 111850
2021-12-31 114525
2022-03-31 113007
2022-06-30 102710
2022-09-30 93149
2022-12-31 103805
2023-03-31 101911
2023-06-30 100781
2023-09-30 100187
2023-12-31 104598