If you pick an inflation calculator (for US), you will find that $1.00 of 1990 is actually $1.82 of 2015. So the inflation is <i>less</i> than 90%.<p><a href="http:&#x2F;&#x2F;www.usinflationcalculator.com&#x2F;" rel="nofollow">http:&#x2F;&#x2F;www.usinflationcalculator.com&#x2F;</a><p><a href="http:&#x2F;&#x2F;www.westegg.com&#x2F;inflation&#x2F;infl.cgi" rel="nofollow">http:&#x2F;&#x2F;www.westegg.com&#x2F;inflation&#x2F;infl.cgi</a><p>Of course, if you live in Venezuela, things are different, but World Bank uses US$.<p>edit: only now noticed that this was mentioned already in an earlier comment by oblio.