This site might be useful.  http://www.presidency.ucsb.edu/data/orders.php
the fact is that Obama issued fewer EOs than George W. Bush, or Reagan, just to name two recent Republican presidents.  
A site with a graphic:  http://www.dailydot.com/layer8/number-of-executive-orders-per-president/.  
This shows that of the presidents who issued more than 100 orders, more were Republicans (if that matters).  The one who issued the most orders was FDR, that terrible man who dared lift us out of the Great Depression.