HeatMap Chart with Color Range
Sep
Sep
Aug
Aug
Jul
Jul
Jun
Jun
May
May
Apr
Apr
Mar
Mar
Feb
Feb
Jan
Jan
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
13
14
14
15
15
16
16
17
17
18
18
19
19
20
20
low
medium
high
extreme
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