Quarterly Millions of US Dollars
1973-01-01 0
1973-04-01 0
1973-07-01 0
1973-10-01 0
1974-01-01 0
1974-04-01 0
1974-07-01 0
1974-10-01 0
1975-01-01 0
1975-04-01 0
1975-07-01 0
1975-10-01 0
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 45
1979-07-01 48
1979-10-01 47
1980-01-01 41
1980-04-01 0
1980-07-01 0
1980-10-01 0
1981-01-01 0
1981-04-01 0
1981-07-01 0
1981-10-01 0
1982-01-01 8
1982-04-01 7
1982-07-01 16
1982-10-01 17
1983-01-01 10
1983-04-01 10
1983-07-01 0
1983-10-01 0
1984-01-01 0
1984-04-01 0
1984-07-01 0
1984-10-01 87
1985-01-01 87
1985-04-01 87
1985-07-01 87
1985-10-01 46
1986-01-01 50
1986-04-01 50
1986-07-01 63
1986-10-01 17
1987-01-01 14
1987-04-01 14
1987-07-01 1
1987-10-01 1
1988-01-01 8
1988-04-01 8
1988-07-01 48
1988-10-01 163
1989-01-01 305
1989-04-01 455
1989-07-01 446
1989-10-01 334
1990-01-01 310
1990-04-01 162
1990-07-01 132
1990-10-01 329
1991-01-01 314
1991-04-01 619
1991-07-01 688
1991-10-01 521
1992-01-01 367
1992-04-01 77
1992-07-01 66
1992-10-01 59
1993-01-01 58
1993-04-01 33
1993-07-01 211
1993-10-01 493
1994-01-01 550
1994-04-01 700
1994-07-01 662
1994-10-01 1413
1995-01-01 998
1995-04-01 1112
1995-07-01 1407
1995-10-01 1592
1996-01-01 1972
1996-04-01 2985
1996-07-01 1709
1996-10-01 2169
1997-01-01 2560
1997-04-01 2660
1997-07-01 2919
1997-10-01 2949
1998-01-01 3434
1998-04-01 4179
1998-07-01 3615
1998-10-01 2502
1999-01-01 2062
1999-04-01 2361
1999-07-01 2087
1999-10-01 1957
2000-01-01 2204
2000-04-01 2557
2000-07-01 2339
2000-10-01 2319
2001-01-01 2134
2001-04-01 1475
2001-07-01 1192
2001-10-01 1129
2002-01-01 1134
2002-04-01 682
2002-07-01 568
2002-10-01 636
2003-01-01 1252
2003-04-01 1805
2003-07-01 1574
2003-10-01 1300
2004-01-01 1194
2004-04-01 721
2004-07-01 832
2004-10-01 1071
2005-01-01 1303
2005-04-01 1173
2005-07-01 1002
2005-10-01 1566
2006-01-01 1618
2006-04-01 1496
2006-07-01 1443
2006-10-01 700
2007-01-01 860
2007-04-01 1429
2007-07-01 1627
2007-10-01 2181
2008-01-01 2514
2008-04-01 2618
2008-07-01 2897
2008-10-01 2670
2009-01-01 2500
2009-04-01 2732
2009-07-01 2560
2009-10-01 2163
2010-01-01 2130
2010-04-01 1988
2010-07-01 2643
2010-10-01 2404
2011-01-01 2248
2011-04-01 3511
2011-07-01 3773
2011-10-01 5081
2012-01-01 5155
2012-04-01 5428
2012-07-01 4166
2012-10-01 3636
2013-01-01 4244
2013-04-01 3488
2013-07-01 3567
2013-10-01 3440
2014-01-01 3001
2014-04-01 1848
2014-07-01 1155
2014-10-01 1111
2015-01-01 2058
2015-04-01 2389
2015-07-01 2395
2015-10-01 2283
2016-01-01 2345
2016-04-01 2008
2016-07-01 2389
2016-10-01 3606
2017-01-01 5147
2017-04-01 5160
2017-07-01 3659
2017-10-01 3060
2018-01-01 2588
2018-04-01 3844