SELECT COUNT(*) FROM table_204_145 WHERE "party" = 'democratic'
how many deaths did the democratic party have in 1987 ?
CREATE TABLE table_204_145 (
    id number,
    "representative" text,
    "state" text,
    "district(s)" text,
    "served" text,
    "party" text,
    "date of birth" text,
    "date of death" text,
    "age" text
)