1988 - Bottom end of august, then top day of election, drop into end of the month.
1992- top in end of august, drop into early october, then up and away
1996 - Top in my, drop into mid july, then up and away.
2000 - Top end of august, drop into oct, then election was stolen and market did terrible into the end of Dec.
2004 - Market bottomed in early august and then up and away.
so no clear patterns, but we did top twice the end of august.