http://www.bloomberg.com/news/articles/2016-04-29/hong-kong-negative-equity-mortgages-jump-15-times-as-prices-drop
The number of Hong Kong homeowners with apartments worth less than their mortgages surged 15 times in the first quarter, according to the Hong Kong Monetary Authority.
一叶而知秋，飞哥是有诗意的人。