Quarterly US dollars
1999-03-31 77116
1999-06-30 67088
1999-09-30 75849
1999-12-31 62671
2000-03-31 61936
2000-06-30 61803
2000-09-30 61261
2000-12-31 62949
2001-03-31 67330
2001-06-30 69384
2001-09-30 73452
2001-12-31 66541
2002-03-31 64762
2002-06-30 66352
2002-09-30 81203
2002-12-31 102139
2003-03-31 99083
2003-06-30 101625
2003-09-30 103111
2003-12-31 86024
2004-03-31 113117
2004-06-30 104669
2004-09-30 121960
2004-12-31 123807
2005-03-31 153528
2005-06-30 157494
2005-09-30 138802
2005-12-31 184108
2006-03-31 171752
2006-06-30 170763
2006-09-30 178886
2006-12-31 190049
2007-03-31 255786
2007-06-30 261048
2007-09-30 290728
2007-12-31 296464
2008-03-31 345805
2008-06-30 282515
2008-09-30 231434
2008-12-31 244716
2009-03-31 214484
2009-06-30 214224
2009-09-30 234404
2009-12-31 250325
2010-03-31 260206
2010-06-30 242891
2010-09-30 288688
2010-12-31 259186
2011-03-31 261180
2011-06-30 263086
2011-09-30 271719
2011-12-31 268922
2012-03-31 281546
2012-06-30 262094
2012-09-30 247589
2012-12-31 266792
2013-03-31 242962
2013-06-30 229216
2013-09-30 239584
2013-12-31 213235
2014-03-31 247822
2014-06-30 235799
2014-09-30 210894
2014-12-31 205597
2015-03-31 213363
2015-06-30 208903
2015-09-30 211870
2015-12-31 200706
2016-03-31 211537
2016-06-30 194636
2016-09-30 199479
2016-12-31 186913
2017-03-31 217959
2017-06-30 205273
2017-09-30 207227
2017-12-31 181455
2018-03-31 202230
2018-06-30 183967
2018-09-30 197643
2018-12-31 192348
2019-03-31 243404
2019-06-30 252517
2019-09-30 258508
2019-12-31 217926
2020-03-31 240760
2020-06-30 217781
2020-09-30 247765
2020-12-31 287500
2021-03-31 260661
2021-06-30 242070
2021-09-30 234151
2021-12-31 222834
2022-03-31 250812
2022-06-30 214106
2022-09-30 210399
2022-12-31 204519
2023-03-31 219298
2023-06-30 220693
2023-09-30 217880