Max Number For Interrupted Cells

I try to catch the maximum number of a cell series, for example: I have some number in the colum D and I need the maximun numbers in the colum E, but i want or like, this function found only the maximum numbers of some cells... It's best if you look the attached file Max number example.

A B C D E
Eq 12-->this is the Max number of Eq1
0.02 Normal1
0.02 Normal1
0.07 Normal1
0.03 Normal1
0.08 Slight2
0.03 Normal1
-
Alt 25-->this is the Max number of Alt2
0.31 Serious4
0.01 Normal1
0.01 Normal1
0.01 Normal1
0.05 Normal1
0.03 Normal1
0.04 Normal1

0.05 Normal1
0.80 Extreme5