Grindstone cowboy A little research has produced numbers that are vastly different to yours. Can you please paste the link of where you obtained that data from?
My statistics are as follows; Brazil - 13 ,China - 30 , India - 10, Canada - 5 http://www.numbeo.com/property-investment/gmaps_rankings_country.jsp
The data i found is probably not reliable as anyone can enter information onto numbeo. At least i have a link...