DSO for the manufacturing industry has drastically increased from 2008 to 2009. In 2008, the average DSO was 43 days, while in 2009, the average DSO was 55 days. In addition, Days Payable has increased. From 39 in 2008 to 51 in 2009. Is this a sign of the times? Check out other analytics below with data provided by iLumen.