SHANGHAI, July 10 -- China's animation industry generated 87 billion yuan (14 billion U.S. dollars) in revenue last year, according to the ongoing 10th China International Cartoon and Game Expo in Shanghai.

The industry has expanded by 10 billion yuan in each of the past three years.

Animation product exports reached 1.02 billion yuan in 2013, up 22.8 percent year on year. About 220,000 people are working in 4,600 animation enterprises in China.

Last year, 29 domestic animation films were screened in China.

The total box office of China's domestic animated films hit 646 million yuan in 2013, up 48 percent.