your inbox is full! But if you really want to know:
It’s “noticeable”, but not enough to live on (yet). Currently I make a profit of £100 / month. (So does Chaz - we split it 50/50). It’s going “up” too. Every time we release a game.
Cas 
Seems my inbox was 200% full (go figure!)
Thanks for the answer. I’m glad to hear it’s noticable! And of course, encouraging to hear that it is possible to be rewarded for hard efforts. Keep it up.