We have absolutely seen this in Alberta. It's prevalent in the testimonials of the survivors and clients we have worked with. I certainly wouldn't say it's exclusively so, but it's certainly a higher percentage than you might think.
In regard to data collection.... That's challenging. It requires the survivor to feel safe enough to provide that level of detail to someone collecting data. That is an inherently flawed system—requiring a survivor to share a highly painful testimonial in order for the data collection to be improved. I'm not entirely sure what recommendation to make, other than to further invest in community-based response services that are able to build trust and have a nuanced understanding of the regional and cultural needs of the individuals in question. They may be able to help and assist with data collection.
To Ms. Stone's earlier point, without the ability to have multi-year funding within an organization collecting this data—the inability to afford someone trained in a technical skill set, such as proper data quality and collection—this will continue to be a challenge, even if we consider prioritizing community-based responses to data needs.