CREATE TABLE table_19165 ("State" CLOB, "Highest point" CLOB, "Highest elevation" CLOB, "Lowest point" CLOB, "Lowest elevation" CLOB, "Mean elevation" CLOB)

how many mean elevation with lowest point being gulf of mexico and state being texas
SELECT COUNT("Mean elevation") FROM table_19165 WHERE "Lowest point" = 'Gulf of Mexico' AND "State" = 'Texas'
SELECT COUNT("Mean elevation") FROM "table_19165" WHERE "Lowest point" = 'Gulf of Mexico' AND "State" = 'Texas'