Quarterly US dollars
1999-03-31 26932
1999-06-30 19970
1999-09-30 22873
1999-12-31 26483
2000-03-31 28581
2000-06-30 29442
2000-09-30 24069
2000-12-31 30183
2001-03-31 26869
2001-06-30 27064
2001-09-30 25822
2001-12-31 28893
2002-03-31 28436
2002-06-30 31124
2002-09-30 36240
2002-12-31 35256
2003-03-31 30118
2003-06-30 22507
2003-09-30 21260
2003-12-31 21999
2004-03-31 29696
2004-06-30 31260
2004-09-30 48498
2004-12-31 61801
2005-03-31 62739
2005-06-30 69174
2005-09-30 43349
2005-12-31 34741
2006-03-31 56051
2006-06-30 40030
2006-09-30 37266
2006-12-31 66097
2007-03-31 73114
2007-06-30 50164
2007-09-30 62550
2007-12-31 66559
2008-03-31 114890
2008-06-30 51473
2008-09-30 62813
2008-12-31 37367
2009-03-31 27561
2009-06-30 37597
2009-09-30 31912
2009-12-31 34961
2010-03-31 27351
2010-06-30 36312
2010-09-30 33084
2010-12-31 25074
2011-03-31 28706
2011-06-30 26114
2011-09-30 33711
2011-12-31 51413
2012-03-31 47203
2012-06-30 41013
2012-09-30 37909
2012-12-31 28013
2013-03-31 33927
2013-06-30 35888
2013-09-30 41618
2013-12-31 40915
2014-03-31 36860
2014-06-30 38481
2014-09-30 39520
2014-12-31 42980
2015-03-31 35731
2015-06-30 27141
2015-09-30 29277
2015-12-31 30250
2016-03-31 33614
2016-06-30 49675
2016-09-30 44211
2016-12-31 39201
2017-03-31 36199
2017-06-30 30250
2017-09-30 44055
2017-12-31 20526
2018-03-31 34939
2018-06-30 30959
2018-09-30 44634
2018-12-31 43227
2019-03-31 49873
2019-06-30 35437
2019-09-30 38931
2019-12-31 33678
2020-03-31 51842
2020-06-30 28495
2020-09-30 36724
2020-12-31 35490
2021-03-31 44333
2021-06-30 33693
2021-09-30 41146
2021-12-31 23250
2022-03-31 43826
2022-06-30 33038
2022-09-30 36096
2022-12-31 38125
2023-03-31 49841
2023-06-30 43036
2023-09-30 44457