Quarter	Millions of US Dollars
1972-07-01	0
1972-10-01	0
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	0
1979-07-01	0
1979-10-01	0
1980-01-01	0
1980-04-01	50
1980-07-01	50
1980-10-01	50
1981-01-01	50
1981-04-01	25
1981-07-01	55
1981-10-01	76
1982-01-01	117
1982-04-01	126
1982-07-01	118
1982-10-01	194
1983-01-01	147
1983-04-01	111
1983-07-01	110
1983-10-01	25
1984-01-01	64
1984-04-01	96
1984-07-01	68
1984-10-01	233
1985-01-01	202
1985-04-01	181
1985-07-01	187
1985-10-01	60
1986-01-01	60
1986-04-01	85
1986-07-01	127
1986-10-01	107
1987-01-01	135
1987-04-01	148
1987-07-01	142
1987-10-01	239
1988-01-01	252
1988-04-01	218
1988-07-01	220
1988-10-01	119
1989-01-01	91
1989-04-01	181
1989-07-01	153
1989-10-01	189
1990-01-01	223
1990-04-01	104
1990-07-01	105
1990-10-01	70
1991-01-01	18
1991-04-01	35
1991-07-01	138
1991-10-01	199
1992-01-01	249
1992-04-01	745
1992-07-01	723
1992-10-01	657
1993-01-01	686
1993-04-01	267
1993-07-01	277
1993-10-01	259
1994-01-01	179
1994-04-01	256
1994-07-01	251
1994-10-01	348
1995-01-01	398
1995-04-01	220
1995-07-01	101
2012-10-01	0
2013-01-01	0
2013-04-01	0
2013-07-01	0
2013-10-01	0
2014-01-01	0
2014-04-01	0
2014-07-01	0
2014-10-01	0
2015-01-01	0
2015-04-01	0
2015-07-01	0
2015-10-01	199
2016-01-01	208
2016-04-01	453
2016-07-01	454
2016-10-01	575
2017-01-01	575
2017-04-01	325
2017-07-01	325