Retiring in 1967: a 4% withdrawal ran out of money in year 44

Retiring in 1967 with $2M and a 4% inflation-adjusted withdrawal, the money ran out in year 44 (2010). Its worst year was 2008, when the S&P 500 lost 35.2% including dividends. Inflation had pushed the yearly withdrawal from $80K to $527K by then.