Quarterly US dollars
1999-09-30 28538
1999-12-31 28575
2000-03-31 28924
2000-06-30 33133
2000-09-30 37238
2000-12-31 40799
2001-03-31 48996
2001-06-30 44236
2001-09-30 53754
2001-12-31 53303
2002-03-31 43872
2002-06-30 74240
2002-09-30 85534
2002-12-31 100113
2003-03-31 104158
2003-06-30 123974
2003-09-30 117985
2003-12-31 126152
2004-03-31 124786
2004-06-30 100365
2004-09-30 113900
2004-12-31 153016
2005-03-31 136192
2005-06-30 180634
2005-09-30 162937
2005-12-31 141795
2006-03-31 128083
2006-06-30 152471
2006-09-30 129149
2006-12-31 131166
2007-03-31 168211
2007-06-30 229608
2007-09-30 253556
2007-12-31 283094
2008-03-31 453202
2008-06-30 481507
2008-09-30 418801
2008-12-31 763307
2009-03-31 560428
2009-06-30 472898
2009-09-30 489667
2009-12-31 423299
2010-03-31 430573
2010-06-30 486793
2010-09-30 589067
2010-12-31 474483
2011-03-31 368409
2011-06-30 397592
2011-09-30 543846
2011-12-31 519681
2012-03-31 512709
2012-06-30 488951
2012-09-30 364530
2012-12-31 381274
2013-03-31 352878
2013-06-30 292300
2013-09-30 261899
2013-12-31 247378
2014-03-31 262290
2014-06-30 308462
2014-09-30 334535
2014-12-31 355820
2015-03-31 375675
2015-06-30 286167
2015-09-30 285471
2015-12-31 247003
2016-03-31 290746
2016-06-30 299234
2016-09-30 281097
2016-12-31 225697
2017-03-31 199430
2017-06-30 192465
2017-09-30 184773
2017-12-31 184398
2018-03-31 185946
2018-06-30 119900
2018-09-30 145376
2018-12-31 168119
2019-03-31 171436
2019-06-30 185629
2019-09-30 238312
2019-12-31 201850
2020-03-31 247766
2020-06-30 239944
2020-09-30 242260
2020-12-31 248260
2021-03-31 209345
2021-06-30 183678
2021-09-30 171038
2021-12-31 156778
2022-03-31 154238
2022-06-30 162889
2022-09-30 185796
2022-12-31 166261
2023-03-31 150477
2023-06-30 153628
2023-09-30 162948