Looks to me like it is time for 10NL

Only small things I'd point out that you could change in your game are:
- Raise more preflop, don't limp quite so often.
- Play more from the button/cutoff.
- Steal the blinds more.
- Fold to 3bets preflop more.
- Maybe be a little more aggressive postflop.

However from what I can see you're clearly a winning player, give 10NL a try. Just play the same game you're used to from 5NL and adjust as necessary