Chris@0: |Easy|OK by now|Can frustrate|Mostly opaque|Truly opaque|Total
Chris@0: Professional|28|29|7|10|0|74
Chris@0: Acad., eng.|65|67|16|18|1|167
Chris@0: Acad., music|75|87|25|43|3|233
Chris@0: Personal use|105|128|23|66|2|324
Chris@0: Total|273|311|71|137|6|798