Hang Seng Index History

I believe everyone is interested to know Hang Seng Index History :


At 1973, from May PE 43.26 until 1974 Jan 21.12 the big bull has started cool down.

At 1979, from Dec PE 20 until 1980 August PE 19.96 then small bull end.

At 1987 Jan PE 19.20 until 1987 Sept PE 22.35 then big bull end.

AT 1993 Dec PE 22.64 until 1994 Feb 19.68 then small bull end.

At 1999 April 21.76 until 2000 Feb 26.18 then the techno bull dead.

At 2003 October 19.20 until 2004 Feb 21.73 the small bull end.

At 2007 Sept 21.18 until ? the fierce bull dead.

Do you have any idea this time bull will last for? i saw the shortest time is 3 months before any correction happen. For this year, this is first time the PE more than 21.18, would it last minimum 3 months? or longer time?

But at least we know one things, now Hang Seng is in very bullish condition ( PE > 22 ) and it has been 2 months! Hmn, if counted 3 months since Sept, then Oct , then November, should we start selling by end of November? Or history will change, it will last for 2 months this time, then history going be changed.