worldwide

1VjBL3dG8fF - stats for coursera's SNA: "Some participation stats: 61,285 students registered, 25,151 watched at least one video, 15,391 tried at least one in-video quiz, 6,919 submitted at least one assignment, 2,417 took the final exam. 1303 earned the regular certificate." - since it was a good course overall that's probably a more realistic expectable participation funnel for future courses.