Advice please

#1
hiya new on here.
Does anyone know where i can find free statistics on extreme sports i.e growth, age and gender of participants etc.

Trying to set something up involving extreme sports and raising money for street children around the world and need some facts and figures.
Trawled the internet for hours - all old or vague data or costing $900.
Any help would be massively appreciated.

Happy ridin :)