Quarterly Millions of US Dollars
1976-01-01 0
1976-04-01 0
1976-07-01 0
1976-10-01 0
1977-01-01 0
1977-04-01 0
1977-07-01 0
1977-10-01 0
1978-01-01 0
1978-04-01 0
1978-07-01 0
1978-10-01 0
1979-01-01 0
1979-04-01 0
1979-07-01 0
1979-10-01 0
1980-01-01 0
1980-04-01 30
1980-07-01 30
1980-10-01 65
1981-01-01 65
1981-04-01 35
1981-07-01 43
1981-10-01 8
1982-01-01 8
1982-04-01 7
1982-07-01 0
1982-10-01 0
1983-01-01 0
1983-04-01 20
1983-07-01 20
1983-10-01 19
1984-01-01 20
1984-04-01 0
1984-07-01 0
1984-10-01 25
1985-01-01 39
1985-04-01 39
1985-07-01 40
1985-10-01 33
1986-01-01 18
1986-04-01 46
1986-07-01 48
1986-10-01 29
1987-01-01 30
1987-04-01 5
1987-07-01 3
1987-10-01 3
1988-01-01 30
1988-04-01 27
1988-07-01 54
1988-10-01 55
1989-01-01 25
1989-04-01 25
1994-04-01 20
1994-07-01 20
1994-10-01 20
1995-01-01 0
1995-04-01 0
1995-07-01 0
1995-10-01 0
1996-01-01 0
1996-04-01 20
1996-07-01 0
1996-10-01 0
1997-01-01 0
1997-04-01 0
1997-07-01 0
1997-10-01 534
1998-01-01 540
1998-04-01 690
1998-07-01 690
1998-10-01 206
1999-01-01 200
1999-04-01 114
1999-07-01 361
1999-10-01 1288
2000-01-01 1286
2000-04-01 1545
2000-07-01 1404
2000-10-01 450
2001-01-01 469
2001-04-01 177
2001-07-01 93
2001-10-01 1627
2002-01-01 1382
2002-04-01 2462
2002-07-01 2437
2002-10-01 1505
2003-01-01 1505
2003-04-01 393
2003-07-01 393
2003-10-01 0
2004-01-01 0
2004-04-01 0
2004-07-01 155
2004-10-01 170
2005-01-01 162
2005-04-01 151
2005-07-01 602
2005-10-01 590
2006-01-01 605
2006-04-01 636
2006-07-01 300
2006-10-01 345
2007-01-01 1122
2007-04-01 1326
2007-07-01 1038
2007-10-01 998
2008-01-01 3011
2008-04-01 3307
2008-07-01 3059
2008-10-01 3090
2009-01-01 1381
2009-04-01 1218
2009-07-01 1546
2009-10-01 2572
2010-01-01 3043
2010-04-01 2553
2010-07-01 2443
2010-10-01 1380
2011-01-01 1066
2011-04-01 2016
2011-07-01 3388
2011-10-01 3937
2012-01-01 8906
2012-04-01 7655
2012-07-01 6416
2012-10-01 4882
2013-01-01 3897
2013-04-01 5273
2013-07-01 6257
2013-10-01 6562
2014-01-01 2463
2014-04-01 2740
2014-07-01 2152
2014-10-01 3398
2015-01-01 7638
2015-04-01 6285
2015-07-01 7605
2015-10-01 5589
2016-01-01 5629
2016-04-01 6053
2016-07-01 4444
2016-10-01 4234
2017-01-01 1094
2017-04-01 3994
2017-07-01 3956
2017-10-01 4235
2018-01-01 7352
2018-04-01 3609