Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_28395 ( "Institution" text, "Location" text, "Nickname" text, "Founded" real, "Type" text, "Enrollment" real, "Joined MAC" real )

### Question ###
What is the highest enrollment schools that joined the mac in 1997?

### Accurate SQL ###

SELECT MAX("Enrollment") FROM table_28395 WHERE "Joined MAC" = '1997'