How many Ace Attorney games are there

Currently, there are four Ace Attorney games:
1. Phoenix Wright: Ace Attorney
2. Phoenix Wright: Ace Attorney - Justice for All
3. Phoenix Wright: Ace Attorney - Trials and Tribulations
4. Apollo Justice: Ace Attorney
Recently, the release of a fifth game has been announced, yet again where the protagonist is Phoenix; however, the game is set one year after the Apollo Justice game and Phoenix is a much older guy. There are also two games in the Miles Edgeworth Investigation series, which is simply where Edgeworth is the protagonist and you investigate crimes without going to court.