You linked to a four and a half year old news article from a highly politicised source.

I wouldn’t call that “documentation”.

buuuut his source is bold enough to fake trump speeches - that takes balls

The BBC is not the source, they are reporting on another study, directly linked near the very top of the article.

	▲	nandomrumber 2 hours ago \| parent [-]
		It actually links to rot. Try it yourself. Link rot.