CREATE TABLE table_7112 ("Year" FLOAT, "Conventional plans" CLOB, "HMOs" CLOB, "PPOs" CLOB, "POS plans" CLOB)

How many years have a conventional plan of 7%?
SELECT SUM("Year") FROM table_7112 WHERE "Conventional plans" = '7%'
SELECT SUM("Year") FROM "table_7112" WHERE "Conventional plans" = '7%'