What year did the University of California, San Diego take 1st place?
CREATE TABLE "table1_11577996_1" (
  "year" real,
  "location" text,
  "1st_place" text,
  "2nd_place" text,
  "3rd_place" text,
  "4th_place" text,
  "5th_place" text
);
SELECT MAX("year") FROM "table1_11577996_1" WHERE "1st_place"='University of California, San Diego';