Name the total number for race caller for bob costas and charlsie cantey
CREATE TABLE "2000s" (
  "year" real,
  "network" text,
  "race_caller" text,
  "s_host" text,
  "s_analyst" text,
  "reporters" text,
  "trophy_presentation" text
);
SELECT COUNT("race_caller") FROM "2000s" WHERE "trophy_presentation"='Bob Costas and Charlsie Cantey';