Charles de Gaulle

There were three attempts to kill General de Gaulle, all of which were unsuccessful. The first was by German snipers in Paris 1945. The second was on 8 September 1961, when a plastic charge was fired at his car by a gang controlled by Raoul Salan. The third attempt was on 22 August 1962, when his car was raked by machine-gun fire which shattered the rear window and burst two tyres. The General escaped all three attempts, but was there a fourth which was not reported?