Table: ballot_results
Columns: meas_num
passed
yes_votes
no_votes
yes
const_amd
type
description

Question: What is the percentage of yes when there were 218846 yes votes
SQL: SELECT "yes" FROM ballot_results WHERE "yes_votes" = 218846

Question: How many type catagories are listed when the percentage of yes is 68.91%?
SQL: SELECT COUNT("type") FROM ballot_results WHERE "yes" = '68.91%'

Question: What is the type when yes votes are 546255? 
SQL: SELECT "type" FROM ballot_results WHERE "yes_votes" = 546255

Question: What is the measure number for the bill described as obscenity and sexual conduct bill? 
SQL: SELECT "meas_num" FROM ballot_results WHERE "description" = 'Obscenity and sexual conduct bill'