Interesting, I pulled these numbers together for business plan for a new product. Which isn't going ahead.
Since you need references: The US Participation rates came from the National Survey on Recreation and the Environment (NSRE) by the USDA Forest Service. 9.1m or 4.3% Outdoor Industry Foundation, 2006 Outdoor Recreation Participation Study, 2006 from http://www.outdoorindustryfoundation.org.
UKstats from National Statistics Office UK, Sport and leisure General Household Survey 2002, 2004, from www.statistics.gov.uk/lib2002.
AUS: Standing Committee on Recreation and Sport 2006, Participation in Exercise, Recreation and Sport Survey 2005 Annual Report 31, from http://www.ausport.gov.au/scorsresearch/erass2003.asp. |