&gt;Before 2000<p>...What???  If google was as good as some people claim, we should be able to look up something like U.S. automobile imports from 1950 through 2015.  Also, NAFTA became law in 1994, and I&#x27;d argue that this is a lagging indicator more than a leading one.  The culture at large (or at least the politically influential part) had to accept this first, before it became law.