1. How much merits were given for each section
If you are going to do an analysis about merits, it is better to compare the percentage values rather than the numbers. This data I get from Bitcointalk Merit Dashboard (by DdmrDdmr) and he updated to the latest merit data available as at 28th september 2018.
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You can search for this information also in here https://bitcointalk.org/index.php?topic=4730614.msg42749694#msg42749694