I can see that this must be an aggregation of different work patterns. I'm not a statistics person so is there some way to estimate the source 'curves' from thi

I can see that this must be an aggregation of different work patterns. I'm not a statistics person so is there some way to estimate the source 'curves' from this. I.e. I know that I'm most productive from around 7.30 am until about midday.