Stem and leaf plot

http://mainland.cctt.org/mathsummer/JosephBond/StemAndPlots/stem-and-leaf_std.htm
A stem and leaf plot is a way to present numerical data in a graphical format, in order to better visualize distribution. Stem and leaf plots retain the original data to at least two significant digits, and put the data in numerical order. There are two columns (generally) in a stem and leaf plot, that are separated by one vertical line. The stems are on the left, while the leafs are on the right. Stem and leaf plots are useful if plotting relative density and the shape of the data; they are also helpful in finding the mode and any outliers.
This stem and leaf plot shows infant mortality rates in Western Africa.