When are ratings updated?

Ratings are now updated at least 8 times per year. Additional minor updates may be added when special corrections or adjustments are needed.

For 2010, ratings are scheduled to be updated on March 23rd, May 4th, June 22nd, July 20th, August 31st, October 19th, and December 14th with the 2010 yearend update on January 25th, 2011.