Limit of endnote citations in a single MS Word document

What is the number of references supported by endnote to be included in a single MS Word doc? 

I ma using Mac, Endnote X7 and MS Word 2011. 

I have never run into a limit in a document.  There was once a limit to the number in a single citation (50, if I remember correctly) but I don’t know if that is still the case.  What kind of numbers are you wondering about?