CREATE TABLE table_9496 ("Year" FLOAT, "Gross Domestic Product" FLOAT, "US Dollar Exchange" TEXT, "Inflation Index  ( 2000 = 100 ) " FLOAT, "Per Capita Income  ( as % of USA ) " FLOAT)

What year before 1980 has is the highest Inflation Index (2000=100)?
SELECT MAX("Inflation Index (2000=100)") FROM table_9496 WHERE "Year" < '1980'
SELECT MAX("Inflation Index (2000=100)") FROM "table_9496" WHERE "Year" < '1980'