Minnesota students continue to lead the nation in ACT college entrance exam scores, according to national data released Wednesday.
The state's graduating class of 2015 earned the highest average composite score, 22.7 out of a possible 36, among states in which at least half the graduates took the test. The national average was 21.
This marks the 10th straight year that Minnesota's students outscored the rest of the nation. A larger percentage of Minnesota students also met standards on three or more subjects than students across the country.
"We are pretty pleased to have this kind of sustained high performance for so many years out of Minnesota students," Minnesota Education Commissioner Brenda Cassellius said. "It's a great testament to our teachers and good programming that we have."
More than 46,000 students, or 78 percent of the 2015 graduating class, took the ACTs. High school seniors who take the ACT are tested in four different areas: English, reading, math and science. Students can also take an optional writing test. Universities and colleges often use those scores in making college admission decisions.
Last year, the state required all juniors to take the exam, but those scores are not included in Wednesday's report.
"For the tenth straight year, Minnesota students are number one in the nation on this important exam," Gov. Mark Dayton said in a news release. "I congratulate our students, teachers, and school administrators for this outstanding achievement."
Despite the high marks, the scores also reflect a deep divide in performance between white students and students of color in Minnesota. More than three-quarters of those who took the exam were white. The average composite ACT score for the white students was 23.7, compared to 17.6 for black students and 19.8 for Hispanic students.