Thirty-one senior officials have been found guilty as of Monday of taking bribes since China launched a campaign to clean up government in late 2012, according to court rulings listed by China's anti-graft body.

The average bribe was 14 million yuan ($2.3 million). A wage-earner making 70,000 yuan a year in Beijing would have to work 200 years to make that much money.

The officials took a total of 440 million yuan in bribes. Six of them were ministerial-level officials, and the rest were at or above bureau level.