Quarterly US dollars
1999-09-30 18742
1999-12-31 19028
2000-03-31 20138
2000-06-30 26220
2000-09-30 29102
2000-12-31 33196
2001-03-31 42174
2001-06-30 35019
2001-09-30 49475
2001-12-31 52428
2002-03-31 40000
2002-06-30 65847
2002-09-30 105490
2002-12-31 111441
2003-03-31 114878
2003-06-30 136629
2003-09-30 120384
2003-12-31 112827
2004-03-31 126354
2004-06-30 93578
2004-09-30 113377
2004-12-31 98376
2005-03-31 100615
2005-06-30 130241
2005-09-30 127186
2005-12-31 115101
2006-03-31 132778
2006-06-30 165174
2006-09-30 124658
2006-12-31 112113
2007-03-31 148253
2007-06-30 203485
2007-09-30 233107
2007-12-31 338634
2008-03-31 558229
2008-06-30 579911
2008-09-30 541001
2008-12-31 1068646
2009-03-31 727909
2009-06-30 444104
2009-09-30 428208
2009-12-31 333237
2010-03-31 329846
2010-06-30 349439
2010-09-30 394694
2010-12-31 340196
2011-03-31 259667
2011-06-30 279370
2011-09-30 407087
2011-12-31 366774
2012-03-31 335558
2012-06-30 320714
2012-09-30 256827
2012-12-31 247658
2013-03-31 224413
2013-06-30 190601
2013-09-30 161014
2013-12-31 146788
2014-03-31 40084
2014-06-30 191686
2014-09-30 188623
2014-12-31 254863
2015-03-31 275504
2015-06-30 207873
2015-09-30 226346
2015-12-31 194127
2016-03-31 243772
2016-06-30 262822
2016-09-30 229589
2016-12-31 168482
2017-03-31 122065
2017-06-30 119878
2017-09-30 119357
2017-12-31 115878
2018-03-31 108046
2018-06-30 101882
2018-09-30 100124
2018-12-31 96669
2019-03-31 98186
2019-06-30 113544
2019-09-30 126411
2019-12-31 110747
2020-03-31 172714
2020-06-30 141891
2020-09-30 144287
2020-12-31 158136
2021-03-31 141056
2021-06-30 127918
2021-09-30 125907
2021-12-31 132914
2022-03-31 144991
2022-06-30 159813
2022-09-30 176230
2022-12-31 130044
2023-03-31 115465
2023-06-30 119473
2023-09-30 122594