https://www.cnbc.com/2019/09/22/warren-buffetts-investing-advice-consistent-over-past-35-years.html
Berkshire Hathaway has posted average annual returns of 17.1% since 1985, well ahead of the broader stock market’s 10.5% including dividends. If you’d invested $10,000 in Berkshire Hathaway at the start of 1985 you’d now have $2.4 million; the same principal in the S&P 500 would now be worth about $227,000.