When tajik is the ethnicity  what is islam?
CREATE TABLE "religion" (
  "ethnicity" text,
  "islam" text,
  "christianity" text,
  "judaism" text,
  "buddhism" text,
  "other" text,
  "atheism" text,
  "n_a" text
);
SELECT "islam" FROM "religion" WHERE "ethnicity"='Tajik';