Evolution of stellar bar-to-galaxy mass fraction, M _*,bar/M _*,galaxy (left y-axes), and galaxy stellar masses, M _* (right y-axes). The VW models are given by the red solid lines, and CW models by the blue solid lines. The galaxy stellar mass evolutions are given by dashed lines. The green background refers to major merger events. Note that the minor and intermediate mergers and close flybys, as well as periods of massive cold accretion inflows, can have an equally strong effect on the galaxy properties, but they are not marked for clarity.