Table: election_results_2010_4
Columns: county
won_by
walker
walker_votes
barrett
barrett_votes

Question: How many figures are given for Walker's percentage in Kenosha county?
SQL: SELECT COUNT("walker") FROM election_results_2010_4 WHERE "county" = 'Kenosha'

Question: What percentage did Walker win in Calumet county?
SQL: SELECT "walker" FROM election_results_2010_4 WHERE "county" = 'Calumet'

Question: How many total figures are given for Milwaukee county?
SQL: SELECT COUNT("won_by") FROM election_results_2010_4 WHERE "county" = 'Milwaukee'