Yes, that figure is probably right. I did my first parachute jump in the summer of '98, a year before this study. It was a static line jump, using a round canopy; ancient stuff even then! I had wanted to skydive for a long time, so it wasn't a "charity jump."
However, almost everyone else on my course was - they were really young as well, a bit naive and maybe a little dazed by the idea of jumping out of a plane. Some of them were Chinese/Korean students, with a very, very rudimentary grasp of the English language; I genuinely have no idea how they all passed the course, but they did. When they went on to jump, I think just under half of them ended up with broken legs/sprained ankles and so on. If my memory serves me right during the same drop the jumpmaster managed to kill himself too.
The instructor's name was Andrew Kelly, and the time was May 1998 [1] - quite a long time ago, so forgive my foggy memory. I wasn't on that particular load; I had already done my first jump a few days before...and my second jump 3 days after he passed.
However, almost everyone else on my course was - they were really young as well, a bit naive and maybe a little dazed by the idea of jumping out of a plane. Some of them were Chinese/Korean students, with a very, very rudimentary grasp of the English language; I genuinely have no idea how they all passed the course, but they did. When they went on to jump, I think just under half of them ended up with broken legs/sprained ankles and so on. If my memory serves me right during the same drop the jumpmaster managed to kill himself too.
To sum up, 11% sounds about right.