"...according to the chart have not increased to the pre-tax peak..."

... fair enough, but that makes one wonder about the chart, given news report content of recent months of this year:

June 2017 news: "The average price for detached houses sold in Greater Vancouver reached a record of $1,830,956 in May, up 5 per cent from the same month in 2016 and just surpassing the previous high of $1,826,541 in January, 2016."

Oct. 2017 news: "The median price of a detached home across the Greater Vancouver region crept up again last week, to $2,090,000 – although it’s around a million bucks more than that in Vancouver proper."