 Since 2007, secondary schools have improved their standardized test pass rates by 14 percent in reading and 17 percent in math, while elementary school pass rates have improved 6 percent in reading and 15 percent in math.Systemwide high school graduation rates also improved by 3 percent, up to 72 percent in 2009.By 2010, D.C. Comprehensive Assessment System reading pass rates had increased by 14 percentage points, and math pass rates had increased by 17 percentage points.