Examining the hidden and stigmatized practice of induced abortion is very hard to do. Throughout the Mexican Republic's 31 states, induced abortion is highly restricted. (The exception is the capital, the Federal District, which decriminalized first-trimester abortions in 2007.) This report presents estimates of induced abortion for 2009, by the country's 32 entidades federativas (or federative entities) and by the woman's age. The report also examines what causes women to resort to abortion in the first place -- unintended pregnancy.