What is the total vessels built in Wilmington, California?
CREATE TABLE "yards_on_the_west_coast" (
  "yard_name" text,
  "location_city_state" text,
  "1st_ship_delivery_date" text,
  "total_number_of_ways" text,
  "total_vessels_built" text
);
SELECT "total_vessels_built" FROM "yards_on_the_west_coast" WHERE "location_city_state"='wilmington, california';