CREATE TABLE table_201_2 (id DECIMAL, "name" TEXT, "height\ m  ( ft ) " TEXT, "completed" DECIMAL, "country" TEXT, "location" TEXT, "coordinates" TEXT, "remarks" TEXT)

which country had the most roller coasters over 80 feet in height in 2008 ?
SELECT "country" FROM table_201_2 WHERE "height\nm (ft)" > 80 AND "completed" = 2008 GROUP BY "country" ORDER BY COUNT(*) DESC LIMIT 1
SELECT "country" FROM "table_201_2" WHERE "completed" = 2008 AND "height\nm (ft)" > 80 GROUP BY "country" ORDER BY COUNT(*) DESC NULLS LAST LIMIT 1