Using different base years for measuring emissions has an effect on estimates of national contributions to global warming. (en.wikipedia.org)
If in base year 2010 there are 100,000 e-book purchases and in 2011 there are 200,000 e-book purchases, the rate of growth is three figures: 100 %. (madgeniusclub.com)
I know he has hardly been on base this year, but he is acting like he has never been on. (sbnation.com)