Quarterly US dollars
1999-03-31 -1966
1999-06-30 -575
1999-09-30 2174
1999-12-31 -1828
2000-03-31 2507
2000-06-30 945
2000-09-30 309
2000-12-31 587
2001-03-31 517
2001-06-30 626
2001-09-30 2188
2001-12-31 -3141
2002-03-31 -4907
2002-06-30 -810
2002-09-30 -1038
2002-12-31 784
2003-03-31 2471
2003-06-30 495
2003-09-30 1928
2003-12-31 -230
2004-03-31 -791
2004-06-30 -358
2004-09-30 409
2004-12-31 1727
2005-03-31 3859
2005-06-30 -4003
2005-09-30 2318
2005-12-31 273
2006-03-31 1572
2006-06-30 -168
2006-09-30 5409
2006-12-31 -3370
2007-03-31 -1480
2007-06-30 5094
2007-09-30 -2751
2007-12-31 160
2008-03-31 -1341
2008-06-30 1705
2008-09-30 1874
2008-12-31 -9568
2009-03-31 -3786
2009-06-30 1272
2009-09-30 460
2009-12-31 -618
2010-03-31 957
2010-06-30 3759
2010-09-30 4487
2010-12-31 -906
2011-03-31 -1401
2011-06-30 182
2011-09-30 -2803
2011-12-31 -1919
2012-03-31 787
2012-06-30 -4549
2012-09-30 -1269
2012-12-31 1059
2013-03-31 1011
2013-06-30 4559
2013-09-30 4957
2013-12-31 -1348
2014-03-31 -1745
2014-06-30 173
2014-09-30 2696
2014-12-31 3220
2015-03-31 -747
2015-06-30 2066
2015-09-30 641
2015-12-31 5883
2016-03-31 -13000
2016-06-30 800
2016-09-30 -580
2016-12-31 1408
2017-03-31 1127
2017-06-30 -3332
2017-09-30 -1254
2017-12-31 -1811
2018-03-31 1856
2018-06-30 1088
2018-09-30 360
2018-12-31 -51
2019-03-31 -2333
2019-06-30 -525
2019-09-30 5486
2019-12-31 -3036
2020-03-31 5315
2020-06-30 -3087
2020-09-30 -1136
2020-12-31 6870
2021-03-31 -141
2021-06-30 -1143
2021-09-30 1298
2021-12-31 12076
2022-03-31 -2437
2022-06-30 -14030
2022-09-30 18825
2022-12-31 -161
2023-03-31 5094
2023-06-30 -2791
2023-09-30 -16583