What is the sum of the years where the attendance was 95,000 and the runner-up was dresdner sc?
CREATE TABLE "german_championship_finals_under_the_gau" (
  "year" real,
  "champion" text,
  "runner_up" text,
  "result" text,
  "date" text,
  "venue" text,
  "attendance" text
);
SELECT SUM("year") FROM "german_championship_finals_under_the_gau" WHERE "attendance"='95,000' AND "runner_up"='dresdner sc';