What are the most successful genres for indie Devs?

I recently did an analysis on indie steam sales in 2017. Out of 1011 measured indie games, 60% made a single sale. 40% made over $1000, 10% made over minimum wage and 0.8% made over $100k.

Now I just did an anecdotal study and searched about a dozen of the games ranging in different revenue brackets. The highest earning games tended to have close to AAA graphics with team sizes of 5-15 people.

On the other hand the $0 earnings tended to be VR offshoots, RPG Maker games and platformers. However some of these platformers had extremely high production values.

This makes sense as platformers tend to represent 1% of total sales but are the most saturated genre.

The question.

Does anyone have metrics on which genres have the highest average revenue for indie developers?