CREATE TABLE table_203_868 (id DECIMAL, "frequency band" TEXT, "band number" DECIMAL, "radio interface" TEXT, "generation" TEXT, "status" TEXT, "notes" TEXT)

what are the number of times 4g is listed as the generation ?
SELECT COUNT(*) FROM table_203_868 WHERE "generation" = '4g'
SELECT COUNT(*) FROM "table_203_868" WHERE "generation" = '4g'