CREATE TABLE table_37535 ("Year of Marriage" FLOAT, "Name" TEXT, "Her Age" FLOAT, "His Age" FLOAT, "# of Children" FLOAT)

What is the mean year of marriage when her age was more than 19 and his age was 30?
SELECT AVG("Year of Marriage") FROM table_37535 WHERE "Her Age" > '19' AND "His Age" = '30'
SELECT AVG("Year of Marriage") FROM "table_37535" WHERE "Her Age" > '19' AND "His Age" = '30'