Best Place To Be A Politician: Rwanda
Rwanda is the only nation where females make up the majority of parliamentarians, holding 45 of 80 seats. WORST: Saudi Arabia, Yemen, Qatar, Oman, and Belize REUTERS/Finbarr O'Reilly

The U.S.' most likely candidate for Federal Reserve Bank chairman, Janet Yellen; Germany's chancellor Angela Merkel; and the International Monetery Fund's chief Christine Lagarde comprise a trifecta of women holding the pursestrings on the Western world's biggest economies.

While they wield tremendous power over some of the world's most powerful economies, their colleagues still lag when it comes to welding political influence. The United States and most European countries have a smaller proportion of women in government than the world average, according to data from the World Bank.

At last calculation, women held the largest proportion of parliament seats in Latin American and Caribbean governments (25.5%) in 2012, followed by sub-Saharan African nations (21.5%).

With only 18 percent of congressional seats held by women, the United States fell below the world average of 20.8 percent.

Rwanda, a tiny country in south-central Africa, is the country with the highest proportion of women in parliament -- more than 56 percent of seats are held by women. Andorra (50 percent), Cuba (45.2 percent), Sweden (44.7 percent) and Seychelles (43.8 percent) round out the top five nations with the most women in parliament.

Saudi Arabia, Qatar, Vanuatu, Palau and Micronesia are all on the opposite end of the spectrum, with not a single woman in parliament.

Here’s a map of 188 countries, color-coded by the percentage of parliament seats held by women. Click on any country for more info:

Here's a chart that shows how the proportion of women in parliament has changed over the past decade in differnet regions around the world: