These figures show what happens after revolts (called "revolutions" here because I was apparently zoning out while making the figures) and coups when looking at different specifications of democracy. Here I use Boix, Miller, & Rosato, Geddes, Wright, & Frantz, Cheibub, Gandhi, & Vreeland, and Polity (>+5) to determine if a state is a democracy. Coup & revolt data come from Svolik (with coding updates from Erica Frantz).
DISCLAIMER: I am not suggesting that these countries are democratizing because of a coup or revolt. In many cases a state might democratize in spite of an otherwise adverse event and in other cases "democratizing" might be nothing more than returning to the state of affairs prior to the coup/revolt. If/when Thailand returns to democracy for example, it would be quite a stretch to say the coup led to democracy.