CREATE TABLE table_204_47 (id DECIMAL, "outcome" TEXT, "no." DECIMAL, "date" TEXT, "tournament" TEXT, "surface" TEXT, "partner" TEXT, "opponents" TEXT, "score" TEXT)

did she play in more matches in 2007 or 2008 ?
SELECT "date" FROM table_204_47 WHERE "date" IN (2007, 2008) GROUP BY "date" ORDER BY COUNT(*) DESC LIMIT 1
SELECT "date" FROM "table_204_47" WHERE "date" IN (2007, 2008) GROUP BY "date" ORDER BY COUNT(*) DESC NULLS LAST LIMIT 1