Regional sports network ratings from 28 U.S.-based NBA teams have dropped 10 percent on average at the All-Star break compared to the same point last season.

Most of the country’s RSNs have posted ratings gains this season; 15 have seen TV ratings increases in the first part of the season, and 13 have seen TV ratings decreases. 

But the size of the decreases have caused the average to drop.

New York (down 41 percent on MSG Network), Chicago (down 36 percent on NBC Sports Chicago) and Boston (down 27 percent on NBC Sports Boston). 

Ratings for the Bulls are at their lowest point in at least 13 years.

The biggest drop-off is from the Cavaliers, who are down 56 percent.