Simplify the following text for a Grade 7 native English-speaking person.
Original: As of 2010 , a maximum of four players can be inducted in one year but the greatest number of players ever inducted in a year was 27 , in 1962 .
Simplified: As of 2007 , a maximum of four players can be added in one year but the greatest number of players ever added in a year was 27 , in 1962 .