The values are changed along with the time - and if the product does not change the time, the value diminishes.
The Custom Value websites may have gone through such transformation - and as of today, the website is not available at all.
As I type this address in the address bar - this is what I get...
This site can’t be reached
www.agentcustomvalues.com took too long to respond.
Search Google for agent custom values
ERR_CONNECTION_TIMED_OUT