Well, I did slowly get back into the market after 2008. I am in my 60s so my investments are very diversified. I am going for safety, in a chaotic world, rather than trying for maximum growth.
This gives you %6 per year. That's great compared to CDs and Bonds but it's not a great return compared to stocks historically. (I think since WWII it was %10 for broader indexes?)
Here's a calculator: http://dqydj.net/sp-500-return-calculator/
68% with dividends reinvested! Not bad.