The minor league statistics project has published statistics for 4 additional league-seasons, bringing the overall total to date to 292 leagues.  The new entries are:

• 1949 Pacific Coast League
• 1950 American Association
• 1997 California League
• 1998 California League

The updated statistics are available via the SABR Encyclopedia, and will post to baseball-reference.com within the coming days.

Cliff Blau, Art Cantu, Stephen Davis, and Bob Kistler deserve thanks for bringing these data to the web.