CREATE TABLE table_22637 ("Years covered" TEXT, "All bills sponsored" FLOAT, "All amendments sponsored" FLOAT, "All bills cosponsored" FLOAT, "All amendments cosponsored" FLOAT, "Bills originally cosponsored" FLOAT, "Amendments originally cosponsored" FLOAT)

How many bills where originally cosponsored in those years where the total of all amendments cosponsored was 0?
SELECT "Bills originally cosponsored" FROM table_22637 WHERE "All amendments cosponsored" = '0'
SELECT "Bills originally cosponsored" FROM "table_22637" WHERE "All amendments cosponsored" = '0'