Get Distinct Count of Columns in a sharepoint List based on other column values using Javascript

I need to get Distinct count of columns in a sharepoint list based on other column. 

For Example, a List look like this,

Name         Location        Gender

AAA           Mumbai          Male

BBB           Bangalore       FeMale

CCC           Jaipur             FeMale

DDD           Mumbai          Male

EEE           Jaipur              Male

I need a count based on

1. In mumbai Male=2 & Female=0

2. In Bangalore Male=0 & Female=1

3. In Jaipur Male=1 & Female=1

Thanks in Advance...