-- Database schema
| candidate : Candidate_ID [ INT ] primary_key , People_ID [ INT ] candidate.People_ID = people.People_ID , Poll_Source [ TEXT ] , Date [ TEXT ] , Support_rate [ INT ] , Consider_rate [ INT ] , Oppose_rate [ INT ] , Unsure_rate [ INT ] | people : People_ID [ INT ] primary_key , Sex [ TEXT ] , Name [ TEXT ] , Date_of_Birth [ TEXT ] , Height [ INT ] , Weight [ INT ] |
-- -- what are the top 3 highest support rates?

SELECT support_rate FROM candidate ORDER BY support_rate DESC LIMIT 3;