I)  total number of launching attempts by PSLV=28
    total number of launching attempts by GSLV=8
ii)  no of successes by PSLV=26
    percentage of successes by PSLV=92.85%
    no of failures by PSLV=1
    no of partial failures by PSLV=1
    percentage of failures by PSLV=7.14%
iii) no of successes by GSLV=3
    percentage of successes by GSLV=37.5%
    no of failures by GSLV=4
    no of partial failures by GSLV=1
     percentage of failures by GSLV=62.5%

Plzz note that the partial failures are added in the % of failures.

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