I am sorry , but this is not quite correct.
I have been talking with other F/Os and they told me they were flying around 75-80 hours a month , some of them even reaching more than 95 hours.
What you should look at is the total hours flown in 12 months and I can tell you that most of us are around the 870+ hours...
The problem is that the rostering is not consistent and you will be flying 60 hours one month and the next one you may be flying 95 hours