Most sex crimes occur in quiet residential areas on Saturday nights, according to statistics published by the Justice Ministry on Wednesday.
Of all 22,034 sex crimes against women in 2011, 3,396 took place on Saturdays, about 500 more than on Mondays, which saw the lowest incidence.
Some 45 percent took place between 8 p.m. and 4 a.m.
Some 2,765 cases took place in the street, followed by stand-alone houses with 2,493, and apartments and townhouses with 2,082.
But women themselves also committed crimes. The largest proportion of women in jail were convicted of fraud and embezzlement with 41.4 percent. In comparison, the most common crime among men was theft at 17.3 percent.
Meanwhile, women accounted for over 40 percent of successful candidates in the bar and civil service exams last year. Women made up 41.7 percent of all 506 successful candidates in the bar exam in 2012, 1.7 times as many as in 2004.
Women also made up 41.8 percent of a total of some 900,000 public servants.
The ministry has published statistics about women every two years since 2000 with a view to working out policies for the protection of women and gender equality.