CREATE TABLE table_55030 ("Year" FLOAT, "Award" CLOB, "Category" CLOB, "Nominee" CLOB, "Result" CLOB)

How many years was Best Musical Revival nominated?
SELECT COUNT("Year") FROM table_55030 WHERE "Nominee" = 'best musical revival'
SELECT COUNT("Year") FROM "table_55030" WHERE "Nominee" = 'best musical revival'