user: Question: How many bills where originally cosponsored in those years where the total of all amendments cosponsored was 0?
Columns: ['Years covered', 'All bills sponsored', 'All amendments sponsored', 'All bills cosponsored', 'All amendments cosponsored', 'Bills originally cosponsored', 'Amendments originally cosponsored']
Types: ['text', 'real', 'real', 'real', 'real', 'real', 'real']
Sample row: ['2007–08', 22.0, 16.0, 133.0, 74.0, 101.0, 57.0]
SQL:

assistant: SELECT SUM("Bills originally cosponsored") FROM "Table" WHERE "All amendments cosponsored" = 0.0;