how many oprah episodes aired in march?
march 2, 2008, march 9, 2008, march 16, 2008, march 23, 2008, march 30, 2008
of those march episodes, which one had the fewest viewers?
march 16, 2008
what was the rating share of the episode with the fewest viewers?
9
what was the rating share per episode for  that episode?
3.6/9