edit:
So Googling this, I came across this article, which agrees with the trends, but also notes:
But the vast majority of the actions — 89 of the 145 — came in the form of anti-dumping and other cases aimed at alleged unfair behaviour by trading partners. Of those, more than 40 were aimed at the trade in steel and other metals.
The global steel sector has been roiled by a collapse in prices blamed on China and its production of more of the metal than it can use. That has led to a growing number of anti-dumping cases in the US and EU and a backlash against Beijing’s bid to be recognised as a market economy in the WTO.
https://www.ft.com/content/2dd0ecc4-3768-11e6-a780-b48ed7b61...