What is the total number of years in which Eiza González had a nominated work in the category of solista favorito?
CREATE TABLE "awards" (
  "year" real,
  "award" text,
  "nominated_work" text,
  "category" text,
  "result" text
);
SELECT SUM("year") FROM "awards" WHERE "nominated_work"='eiza gonzález' AND "category"='solista favorito';