This is for the US, but the pay gaps are similar though smaller in Malaysia (excerpt):
Most women will never earn as much as men in their lifetimes.
In Wyoming, it will take 144 years for equal pay, according to a recent report from the Institute for Women’s Policy Research that looked at trends in women’s employment and earnings. Other states with particularly high disparities included Louisiana, North Dakota and Utah. The state with the shortest wage gap, Florida, was still 23 years. And Washington, D.C. marks the best place for women’s employment and earnings, the report found, perhaps because it is small and urban. Still, the pay imbalance won’t close until 2055.
Tuesday marks national Equal Pay Day, an event from the National Committee on Pay Equity, a nonprofit advocacy group. The date represents how long into 2015 it would take a woman to earn what a man did in 2014.
Women working full-time in the U.S. last year earned 82.5 cents for every dollar a man earned, according to the Labor Department’s weekly wage data. There are disparities across regions and occupations.
The widest gap in weekly earnings came in the legal profession, where women earn 56.7% of what men do. But nearly all jobs have gaps, from chief executive (70%) to food preparation (90.5%).
Here’s the chart from the 2012 Salaries and Wages Survey from DOS:
My own data, which unfortunately I can’t publish, shows considerable variation across different sectors, with some industries having very large pay gaps (>20%), while a few are near parity.