Currency Debasement Website

This site, has been recommeneded here several times in the past, and I do like the website for their analysis of past and current coins' metal content.
However, after looking at the Canadian 1-cent, the composition for the 1920-1941 is listed as 98% Copper, 3% Tin, 1.75% Zinc. Obviously this is more than 100%.
I tried to send an email to the site to inform them, but I kept getting an error message that I needed to input my email address, but there wasn't any place for me to enter it.
So, I am writing this in the hopes that either someone here either knows personally, knows how to contact, or the webmaster is a visitor to this site and can correct these errors.
http://www.currencydebasement.com
However, after looking at the Canadian 1-cent, the composition for the 1920-1941 is listed as 98% Copper, 3% Tin, 1.75% Zinc. Obviously this is more than 100%.
I tried to send an email to the site to inform them, but I kept getting an error message that I needed to input my email address, but there wasn't any place for me to enter it.
So, I am writing this in the hopes that either someone here either knows personally, knows how to contact, or the webmaster is a visitor to this site and can correct these errors.
http://www.currencydebasement.com