The most appropriate face icon I can think of that belongs here would be

I believe you're looking way too much into this. I wouldn't have the slightest idea what TF I got for No. 100/200 & nor does it concern me.

Wow, you actually keep track of what TF became number 178, 179, 180 etc?

I keep a word document of what TFs I own & my current total but that's it.