Quarter	Millions of US Dollars
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	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	25
1982-04-01	25
1982-07-01	25
1982-10-01	25
1983-01-01	25
1983-04-01	25
1983-07-01	25
1983-10-01	25
1984-01-01	0
1984-04-01	0
1984-07-01	0
1984-10-01	40
1985-01-01	40
1985-04-01	41
1985-07-01	47
1985-10-01	0
1986-01-01	0
1986-04-01	6
1986-07-01	6
1986-10-01	6
1987-01-01	7
1987-04-01	16
1987-07-01	18
1987-10-01	22
1988-01-01	21
1988-04-01	3
1988-07-01	0
1988-10-01	0
1989-01-01	0
1989-04-01	0
1989-07-01	0
1989-10-01	0
1990-01-01	0
1990-04-01	0
1990-07-01	36
1990-10-01	37
1991-01-01	36
1991-04-01	36
1991-07-01	0
1991-10-01	0
1992-01-01	0
1992-04-01	0
1992-07-01	0
1992-10-01	0
1993-01-01	0
1993-04-01	0
1993-07-01	0
1993-10-01	0
1994-01-01	0
1994-04-01	51
1994-07-01	51
1994-10-01	50
1995-01-01	57