CREATE TABLE table_19283982_4 (leader VARCHAR, _percentage_of_popular_vote VARCHAR)

Name the number of leaders for % of popular vote being 11.05%
SELECT COUNT(leader) FROM table_19283982_4 WHERE _percentage_of_popular_vote = "11.05%"
SELECT COUNT("leader") FROM "table_19283982_4" WHERE "11.05%" = "_percentage_of_popular_vote"