Email Group Subscribe/Unsubscribe

Hello,

I am trying to create an Insight analysis on subscribed and unsubscribed from a specific email group.

For example: I want to know who subscribed this month, and if they canceled their subscription this month too

However, when we look at the Oracle Analysis (Email Group Analysis - Total Subscribed Contacts and Email Group Analysis - Total Unsubscribed Contacts), they have the same field (Email Group Subscribe Date/Time). This causes us to not be able to know when the contacts subscribed and when they unsubscribed because this field is replaced by the unsubscription date.

Is there a way to know the date contacts subscribed and the date they unsubscribed separately?