user: Question: What year before 1980 has is the highest Inflation Index (2000=100)?
Columns: ['Year', 'Gross Domestic Product', 'US Dollar Exchange', 'Inflation Index (2000=100)', 'Per Capita Income (as % of USA)']
Types: ['real', 'real', 'text', 'real', 'real']
Sample row: [1980.0, 7764.0, '0.27 Kuwaiti Dinars', 55.0, 171.08]
SQL:

assistant: SELECT MAX("Inflation Index (2000=100)") FROM "Table" WHERE "Year" < 1980.0;