15
17
21
23
34
33
32
30
43
42
40
38
8
8
7
8
2010
2011
2012
2013
A
B
C
D
Heat Map: Color Scale (Ordinal)
<= 20
20 - 40
>= 40
>= 40
<= 20
20 - 40
>= 40