I included some other random statistics because why not.

Mega Evolutions excluded, the average BST is **425.1092**.

- The average HP stat is
**68.86**.
- The average Attack stat is
**76.86**.
- The average Defense stat is
**72.32**.
- The average Sp. Attack stat is
**70**.
- The average Sp. Defense stat is
**70.4**.
- The average Speed stat is
**66.6**.
- The average stat is
**70.85**.

And with Mega Evolutions included, the average BST is **436.1197** and the average stat is **72.69**.

Hope I helped. :)

Source and Excel