How to monitor Peak concurrent of VPN per month

[jewfcb001]

Hi All,
I will find method how to monitor peak concurrent of Anyconnect VPN . But I think following command below . 
Peak Concurrent will increase continuously until ASA will clear statistic . If need to see per month of peak concurrent how to see that ?

[tvotna]

I was thinking about "clear vpn-sessiondb statistics" executed from EEM applet every 30 days.

event manager applet <name>
 event timer watchdog time <seconds>
 output none

2nd applet can be used to collect "show vpn-sessiondb" output. You need to test this solution very carefully before putting it into production, because it might cause undesirable effects in failover.

[jewfcb001]

@tvotna 
Thank you for answer. 

[MHM Cisco World]

since PEAK is near to real time calc so you can not see per month BUT 
the link below show some OID that can use in SNMP to detect MAX VPN
take look
https://community.cisco.com/t5/security-knowledge-base/asa-best-practices-for-remote-access-vpn-performance/ta-p/4070579

MHM