Odd Secunia PSI Result

I did a Secunia PSI scan on my Windows 7 laptop. It found no insecure programs, but gave this strange result:

Security Threats:
0
Secunia System Score: [?]
100%
Secunia PSI WorldMap:
Your Secunia System Score of 100% is 5% HIGHER than the average user from Georgia, United States.
Compared to users WITHOUT the Secunia PSI installed, your Secunia System Score is 85% WORSE - install patches now!
Last Full System Scan: [?]
3 minutes ago
How could a 100% rating be 85% worse than anything? What an odd bug. Still, I highly recommend the tool for those interested in keeping a Windows PC up to date.