Display total number of patients on selecting a particular node

[ysfxix]

Is your feature request related to a problem? Please describe.
On selecting a node in any of the filter groups (State, City, Travel), people also wish to see the total number of patients in that particular node. Currently there is no way to know that.

Describe the solution you'd like
There should be a legend displayed or some label which shows the total number of patients in a particular node (grouped by Male and Female).

E.g. On selecting Maharashtra node, it should display total number of patients in Maharashtra along with a breakdown of total number of male and females