Teachers' working conditions international survey

Teachers in the U.S. work more hours each week than their international peers -- 45 hours, compared with 38 hours, according to a recent survey. Data from 100,000 teachers in 34 countries also show that women comprise 68% of professionals in the field.
OECD. (2014).  Teaching and Learning International Survey.
http://www.keepeek.com/Digital-Asset-Management/oecd/education/talis-2013-results_9789264196261-en#page1