"...indigenous women make up a disproportionate number of street sex workers in places like Vancouver and Edmonton."

Really?  Got facts/figures to back that up?

Here's what I found: 
“Based on our study, many of the people linked to Canada’s sex industry—workers and their intimate partners, managers and clients—have much in common with other Canadians. By and large, they are Canadian-born, Caucasian, in their 30s or 40s with a high school diploma and some form of post-secondary education or training,” the report states.  (Georgia Straight, Sept 19 2014)

The report: "The working paper, whose lead author is Cecilia Benoit of the University of Victoria, will be discussed at an international symposium in Ottawa on September 22 and 23. It’s based on five studies undertaken in St. John’s, Montréal, Kitchener, Fort McMurray, Calgary, and Victoria."