I'm not at work, but I can find 20 year + returns that show the same thing.
But anyways.... He's been proven wrong and may as well leave it there.
If its long term data your'e after:
Link to Robert Shiller's database of US capital market returns since 1871:
http://www.econ.yale.edu/~shiller/data/ie_data.xls
This is a great resource - The global investment returns yearbook 2014. Based on the research of Dimson, Marsh and Staunton.
It shows capital market returns for more than 20 countries over the last 100+ years.
http://gallery.mailchimp.com/6750fa...s/global_investment_returns_yearbook_2014.pdf
This is a great report, and anyone interested in broadening their knowledge of economics, specifically finance should read it.
An idiot would browse through the tables and graphs, and conclude that stocks always beat bonds and cash, so why invest in anything else.
But if you want to be educated you will read through the whole thing and learn that investing is not a maximisation problem, but rather an optimisation problem and that there are good reasons why 75% of global money sloshing around capital markets is invested in bonds.
You should also spend a lot more time focusing on the reports on Austria, Italy, Russia than on South Africa, Australia, USA. - understanding risk is much more valuable than understanding return when it comes to investment management. You can manage risk, returns are beyond your control.