A new report estimates that 29 million women and girls are victims of modern slavery, exploited by practices including forced labour, forced marriage, debt-bondage and domestic servitude.

Grace Forrest, co-founder of the Walk Free anti-slavery organisation, said Friday that means one in every 130 women and girls is living in modern slavery today, more than the population of Australia.

"The reality is that there are more people living in slavery today than any other time in human history," she told a U.N. news conference.

Walk Free defines modern slavery "as the systematic removal of a person’s freedom, where one person is exploited by another for personal or financial gain," she said.

According to the report, titled "Stacked Odds," women account for 99% of all victims of forced sexual exploitation, 84% of all victims of forced marriage, and 58% of all victims of forced labour.