More 2012 high school graduates from Bulloch County and the state took the ACT — and they posted higher scores — compared to the class of 2011, according to results made available Wednesday. Bulloch County’s average composite ACT score for the class of 2012 was 18.4, compared to 17.8 for 2011 graduates. That trailed Georgia’s averages of 20.7 in 2012 and 20.6 in 2011, and the national average of 21.1 for both graduating classes.