As of the return of Shenzhou-6 on October 16th, 2005

American Launched Man-Hours in Space 237,585:08:22
Russian Launched Man-Hours in Space 394,791:04:28
Chinese Launched Man-Hours in Space 136:50:33
Humanity's Launched Man-Hours in Space 632,491:41:47

Total American Launches 150
Total American Flights (crew*launch) 759
Total American Astronauts 320

Total Russian Launches 117
Total Russian Flights (crew* launch) 256
Total Russian Astronauts 141

Total Chinese Launches 2
Total Chinese Flights (crew* launch) 3
Total Chinese Astronauts 3

Total Humanity's Launches 269
Total Humanity's Flights (crew* launch) 1018
Total Humanity's Astronauts 465