> Let's look at the leaders for number of entries per category. (^_^;
>
> wc -l */roles.html | sort +0nr | head -40
>        309 inoue-kikuko/roles.html
>        307 tsuru-hiromi/roles.html
>        296 touma-yumi/roles.html
>        231 mitsuishi-kotono/roles.html
>        221 yamazaki-wakana/roles.html
>        219 hisakawa-aya/roles.html
>        201 hayashibara-megumi/roles.html
>        201 orikasa-ai/roles.html
>        199 mizutani-yuko/roles.html
>        191 shiratori-yuri/roles.html

Which is the more prolific seiyuu, if you factor in their ages? (e.g.
average number of roles per year)