CREATE TABLE table_203_872 (id NUMBER, "year" NUMBER, "location ( s ) " CLOB, "number of contestants" NUMBER, "ladies winner" CLOB, "men's winner" CLOB)

what is the total number of contestants that participated in 1972 ?
SELECT "number of contestants" FROM table_203_872 WHERE "year" = 1972
SELECT "number of contestants" FROM "table_203_872" WHERE "year" = 1972