We need general data of different martial art styles through the last three years.
More specifically we would be interested in the number of clubs/dojo’s registered in certain style's federation/association/organisation
and the general characteristics of the practitioners (number, average age, gender, etc.).
+ extra e-mail contacts of those clubs/dojos around the world categorized by style and sub-category by continent.
Styles that we are interested of are following:
Okinawan Goju-Ryu Karate-do
Shotokan Shobukan Karate Association