SEOUL, SOUTH KOREA - OCTOBER 19: A South Korean prostitute deposits her money into a piggy-bank in her room on October 19 2004, in Seoul, South Korea. The South Korean government began enforcing new laws last month to target human traffickers, pimps and prostitutes. The sex industry accounts for more than four percent of South Korea's gross domestic product (GDP), with its annual sales estimated at 24 trillion won (21 billion dollars) last year. Statistics show one in five South Korean men buy sex four times a month and 4.1 percent of women aged 20 to 30 rely on prostitution to make a living.