CREATE TABLE table_203_362 (id DECIMAL, "school" TEXT, "location" TEXT, "outright titles" DECIMAL, "shared titles" DECIMAL, "runners-up" DECIMAL, "total finals" DECIMAL, "last title" DECIMAL, "last final" DECIMAL)

how many schools have had at least 3 share titles ?
SELECT COUNT("school") FROM table_203_362 WHERE "shared titles" >= 3
SELECT COUNT("school") FROM "table_203_362" WHERE "shared titles" >= 3