CREATE TABLE table_61363 ("Club" TEXT, "First season in top division" TEXT, "Number of seasons in top division" FLOAT, "First season of current spell in top division" TEXT, "Number of seasons in Liga MX" FLOAT, "Top division titles" FLOAT)

What is the highest Number of seasons in Liga MX for Club cruz azul, when their season in the top division is higher than 68?
SELECT MAX("Number of seasons in Liga MX") FROM table_61363 WHERE "Club" = 'cruz azul' AND "Number of seasons in top division" > '68'
SELECT MAX("Number of seasons in Liga MX") FROM "table_61363" WHERE "Club" = 'cruz azul' AND "Number of seasons in top division" > '68'