21 Percent Growth In Seniors Working Since 2008

From The Wall Street Journal Real Time Economics, "More People Over 65 Are Still Working" by John Shipman:

In September, the number of those 65 and over who were employed was up 21% from the same month in 2008, while broad workforce employment was down almost 1.4%. The size of the retirement-age labor force has also increased 23% during the past four years, while the broader labor force is up less than 0.4%.

Source: The Wall St. Journal Real Time Economics