How do i work out the cumulative freqeuncy of the following?

I have a set of numbers that need to be counted as the frequency:

67.5
67.5
67.5
67.5
67.5
67.5
67.5
67.5
67.5
67.5
67.5
67.5
67.5
67.5
67.5
67.5
67.5
67.5
67.5
67.5
67.5
90
90
0
90
90
90
90
90
90
90
90
90
112.5
112.5
112.5
112.5
90
90
67.5
67.5
67.5
67.5
90
90
90
90
90
90
90

and groups for the frequency to be calculated:

0
22.5
45
67.5
90
112.5
135
157.5
180
202.5
225
247.5
270
292.5
315
337.5
360

Regards

FC