Quarterly US dollars
1999-03-31 54596
1999-06-30 54121
1999-09-30 52681
1999-12-31 48567
2000-03-31 51164
2000-06-30 48090
2000-09-30 46439
2000-12-31 47180
2001-03-31 45177
2001-06-30 45893
2001-09-30 44567
2001-12-31 39443
2002-03-31 44099
2002-06-30 46213
2002-09-30 46713
2002-12-31 45215
2003-03-31 51359
2003-06-30 48161
2003-09-30 54628
2003-12-31 60369
2004-03-31 72401
2004-06-30 71147
2004-09-30 79478
2004-12-31 80756
2005-03-31 96652
2005-06-30 86762
2005-09-30 103666
2005-12-31 97158
2006-03-31 125431
2006-06-30 119201
2006-09-30 134540
2006-12-31 114266
2007-03-31 145248
2007-06-30 157595
2007-09-30 167049
2007-12-31 179276
2008-03-31 208744
2008-06-30 180814
2008-09-30 182571
2008-12-31 140888
2009-03-31 125250
2009-06-30 137235
2009-09-30 129436
2009-12-31 135641
2010-03-31 148365
2010-06-30 159401
2010-09-30 171866
2010-12-31 173858
2011-03-31 206258
2011-06-30 213238
2011-09-30 196794
2011-12-31 200259
2012-03-31 207363
2012-06-30 193846
2012-09-30 199931
2012-12-31 210148
2013-03-31 240773
2013-06-30 249296
2013-09-30 248081
2013-12-31 236809
2014-03-31 263452
2014-06-30 255873
2014-09-30 248442
2014-12-31 234685
2015-03-31 234356
2015-06-30 241631
2015-09-30 226786
2015-12-31 225483
2016-03-31 210319
2016-06-30 208996
2016-09-30 205430
2016-12-31 203979
2017-03-31 212576
2017-06-30 210658
2017-09-30 226898
2017-12-31 237370
2018-03-31 241464
2018-06-30 227990
2018-09-30 235720
2018-12-31 237600
2019-03-31 246437
2019-06-30 244441
2019-09-30 232060
2019-12-31 244762
2020-03-31 236575
2020-06-30 211771
2020-09-30 214764
2020-12-31 232653
2021-03-31 239726
2021-06-30 234226
2021-09-30 234998
2021-12-31 271044
2022-03-31 261635
2022-06-30 253769
2022-09-30 280299
2022-12-31 264386
2023-03-31 259293
2023-06-30 256145
2023-09-30 245265