I'm trying to find this information for commercial jets. It is nowhere to be found. Does anyone know typical values?
For an A310 we start from the attack of the engines with an angle of attack of the profile of 3 degrees, and we arrive at the wing tip to -3 degrees. In general along the wing the twist angle is around 2-3 degrees, it is near the tip that changes and arrive until a negative value.
Commercial jets are special because they change airfoil shape over span quite dramatically to reduce the effects of sweep on local lift. Also, the lift force on a backward swept wing causes it to twist, so washout in flight is several degrees higher than on the ground.
In order to compensate for the much higher zero-lift angle of attack of the modified root airfoil, its incidence is very high. If you use the fuselage axis as a reference, in case of the A330 and A340 the incidence changes from +4.5° at the root to 0° between 30% and 70% span and -2° at the tip when on the ground and -2° at 70% span and -5° at the tip in flight.