question: In Pacifico Central where the rainfall by depth (mm/year) was 2801 what was the rainfall by volume?
answer: SELECT rainfall_by_volume__km_3__year_ FROM table_25983027_1 WHERE rainfall_by_depth__mm_year_ = 2801
context: CREATE TABLE table_25983027_1 (rainfall_by_volume__km_3__year_ VARCHAR, rainfall_by_depth__mm_year_ VARCHAR)