Name the new adherents per year for buddhism
CREATE TABLE "table1_28137918_5" (
  "religion" text,
  "births" real,
  "conversions" text,
  "new_adherents_per_year" real,
  "growth_rate" text
);
SELECT "new_adherents_per_year" FROM "table1_28137918_5" WHERE "religion"='Buddhism';