Database: california_schools
Question: What is the eligible free or reduced price meal rate for the top 5 schools in grades 1-12 with the highest free or reduced price meal count of the schools with the ownership code 66?
SQL: SELECT CAST(T1.`FRPM Count (K-12)` AS REAL) / T1.`Enrollment (K-12)` FROM frpm AS T1 INNER JOIN schools AS T2 ON T1.CDSCode = T2.CDSCode WHERE T2.SOC = 66 ORDER BY T1.`FRPM Count (K-12)` DESC LIMIT 5