Here's a graph I was surprised by. It shows the annual growth rate for the real dividends on the S&P 500 index over the past 10-years. Recent numbers are approaching 4% (ie. real dividends today are 4% per year higher than 10 years ago).
Aside from the big dip during the Great Recession in 2008/2009, the rate had been trending this way since the dot-com-bust.