Those not in the labor force reached a new record high level on January 1, 2013: 89.008 million. On 1-1-01 there were 70.008 million not in the labor force. On 1-1-09, 80.507 million. What that all means is that under Bush people left the labor force at a rate of 1.302 million per year, but under Obama it rose dramatically to a rate of 2.125 million per year, 63% higher than under Bush.
Believe it or not, under Ronald Reagan, whose unemployment record had been the worst in the post-war period until Obama, just 147,000 left the labor force ANNUALLY, for a TOTAL of only 1.176 million in eight years. Under Clinton the rate rose almost four times that, to 566,000 annually.