Commercial use of http://finance.yahoo.com/d/quotes.csv?e=.csv&f=sl1d1t1&s=USDEUR=X

I want to use "http://finance.yahoo.com/d/quotes.csv?e=.csv&f=sl1d1t1&s=USDEUR=X" URL for commercial use. where inplace of USD and EUR i want to query about exchange rates of different countries. What are the policies or terms of use to use that for commercial use.