Table: election_results_2004
Columns: party
party_list_votes
vote_percentage
total_seats
seat_percentage

Question: What is the total number of seats of the Christian Democratic Union (CDU) party?
SQL: SELECT "total_seats" FROM election_results_2004 WHERE "party" = 'christian democratic union (cdu)'

Question: What seat has a vote percentage of 100.0%
SQL: SELECT "seat_percentage" FROM election_results_2004 WHERE "vote_percentage" = '100.0%'