unclassified chlorpleth maps

The image is a unclassified chloropleth map of the birth rate of children t0 women in some europeon nations. In unclassified chloropleth maps shading and tinting of a continous color is used to designate a numerical value. In this particular map a contnous orange scale is used to denote the maximum and minimum fertility rate of children in Europe.

Image found at:http://http://www.google.com/imgres?imgurl=http://www.esds.ac.uk/international/images/uchoropleth.gif&imgrefurl=http://www.esds.ac.uk/international/support/user_guides/gisoverview.asp&usg=__wM_v7xf-Brm4zbymwKkZwfnGQXI=&h=289&w=454&sz=45&hl=en&start=2&sig2=Y86M6cqePcd2hCWeeUQStA&tbnid=O9dCkATpsA3MoM:&tbnh=81&tbnw=128&ei=3n9TTPfCLsL88AaIhumAAQ&prev=/images%3Fq%3Dunclassified%2Bchoropleth%2Bmap%26hl%3Den%26biw%3D1276%26bih%3D579%26gbv%3D2%26tbs%3Disch:1&itbs=1