How near does it need to be to be near an all time high? If we say within 5% then it looks like, outside of the catastrophic period between 2000 and 2012, the g

How near does it need to be to be near an all time high? If we say within 5% then it looks like, outside of the catastrophic period between 2000 and 2012, the graph spent the vast majority of its time there.