Quarterly Millions of US Dollars
1978-01-01 20
1978-04-01 20
1978-07-01 20
1978-10-01 20
1979-01-01 20
1979-04-01 20
1979-07-01 20
1979-10-01 20
1980-01-01 20
1980-04-01 70
1980-07-01 82
1980-10-01 127
1981-01-01 124
1981-04-01 121
1981-07-01 122
1981-10-01 123
1982-01-01 121
1982-04-01 120
1982-07-01 119
1982-10-01 121
1983-01-01 120
1983-04-01 119
1983-07-01 118
1983-10-01 117
1984-01-01 119
1984-04-01 117
1984-07-01 115
1984-10-01 114
1985-01-01 94
1985-04-01 44
1985-07-01 48
1985-10-01 9
1986-01-01 10
1986-04-01 10
1986-07-01 11
1986-10-01 12
1987-01-01 12
1987-04-01 12
1987-07-01 12
1987-10-01 15
1988-01-01 14
1988-04-01 12
1988-07-01 12
1988-10-01 13
1989-01-01 11
1989-04-01 11
1989-07-01 12
1989-10-01 12
1990-01-01 13
1990-04-01 578
1990-07-01 579
1990-10-01 565
1991-01-01 565
1991-04-01 565
1991-07-01 565
1991-10-01 565
1992-01-01 565
1992-04-01 565
1992-07-01 565
1992-10-01 565
1993-01-01 565
1993-04-01 565
1993-07-01 5174
1993-10-01 4785
1994-01-01 4769
1994-04-01 3283
1994-07-01 2843
1994-10-01 2900
1995-01-01 1799
1995-04-01 1589
1995-07-01 1802
1995-10-01 1212
1996-01-01 1220
1996-04-01 1270
1996-07-01 1094
1996-10-01 934
1997-01-01 783
1997-04-01 632
1997-07-01 762
1997-10-01 710
1998-01-01 684
1998-04-01 822
1998-07-01 781
1998-10-01 708
1999-01-01 761
1999-04-01 1147
1999-07-01 1231
1999-10-01 1256
2000-01-01 1275
2000-04-01 1203
2000-07-01 1345
2000-10-01 1318
2001-01-01 1543
2001-04-01 1462
2001-07-01 1442
2001-10-01 1442
2002-01-01 1682
2002-04-01 1659
2002-07-01 1652
2002-10-01 1642
2003-01-01 2096
2003-04-01 1740
2003-07-01 1749
2003-10-01 1793
2004-01-01 1889
2004-04-01 1897
2004-07-01 1911
2004-10-01 1909
2005-01-01 1907
2005-04-01 1894
2005-07-01 1861
2005-10-01 1855
2006-01-01 1851
2006-04-01 1851
2006-07-01 1850
2006-10-01 1850
2007-01-01 1850
2007-04-01 1850
2007-07-01 1850
2007-10-01 1850
2008-01-01 1650
2008-04-01 1650
2008-07-01 1650
2008-10-01 1650
2009-01-01 1650
2009-04-01 1350
2009-07-01 1350
2009-10-01 1350
2010-01-01 1350
2010-04-01 1350
2010-07-01 1350
2010-10-01 1350
2011-01-01 1100
2011-04-01 1100
2011-07-01 1100
2011-10-01 1350
2012-01-01 1100
2012-04-01 1350
2012-07-01 1350
2012-10-01 2350
2013-01-01 2100
2013-04-01 3600
2013-07-01 4100
2013-10-01 5060
2014-01-01 5100
2014-04-01 6100
2014-07-01 6100
2014-10-01 6100
2015-01-01 7100
2015-04-01 7100
2015-07-01 7100
2015-10-01 7227
2016-01-01 7227
2016-04-01 7727
2016-07-01 7727
2016-10-01 7727
2017-01-01 7727
2017-04-01 8327
2017-07-01 8327
2017-10-01 8327
2018-01-01 8327
2018-04-01 8327