Chart: Fewer officials available

After peaking in the 2010-11 school year, the number of registered officials has dropped by 646 fewer officials in 2014-15.

School yearRegistered officials

2005-067,947

2006-078,040

2007-088,189

2008-098,409

2009-108,758

2011-128,828

2012-138,619

2013-148,366

2014-158,201