HAProxy statistics data different

Hello Folks,

I have setup haproxy opensource for our project. We were trying to create a report on concurrent users based on HAProxy statistics, but when we open the webpage for the statistics the data seems to be different from each other.
I’ve opened on 2 different browser and I also checked by asking other engineer to open it to cross-check, but it was also different.
What is the reason
Currently i have configured refresh rate 10 seconds but if i will change it to 30 seconds it show the same thing.