The production numbers they're looking for is "it doesn't matter." Now...I do believe that you should work as hard as possible without getting hurt because to do otherwise would put you firmly in the tool category. But when they start to harass you with numbers and you've made book, feel free to nicely file harassment grievances because the numbers don't matter. In my experience though, if you try hard and do as you're told you won't get any grief from anyone. It's when you get mouthy or take things personally that they lean on you.