Ever wondered when is a block found in a pool in regards to network diff ? There you have it:

https://cdn.discordapp.com/attachments/422604602064633857/484639916861423626/Screen_Shot_2018-08-30_at_11.21.07.png

Overview per day/week/month (currently last 50 found blocks - confirmed/pending/orphaned - but can easily be extended)