How Many Linux Viruses Are There?

Though a certain Redmond, Washington based company would have you believe otherwise, Linux is fairly secure from many of the malware problems that plague other platforms.  Aside from not being subject to vulnerabilities from malicious ActiveX code and installing in a default secured mode, Linux suffers very little from virus threats

 
Here is a list of all known Linux viruses as of this writing.  Bear in mind that there are well over 10,000 such viruses for other platforms.