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