CREATE TABLE table_204_914 (id DECIMAL, "year" DECIMAL, "team" TEXT, "games" DECIMAL, "attempts" DECIMAL, "yards" DECIMAL, "ypc" DECIMAL, "long" DECIMAL, "tds" DECIMAL)

did he play less than 20 years ?
SELECT (SELECT MAX("year") - MIN("year") FROM table_204_914) < 20
SELECT (SELECT MAX("year") - MIN("year") FROM "table_204_914") < 20