You’ll find, below the cut, a brief digression on the meaning of “caused or contributed”, focusing on the meaning of “or” and applying both standard logic and legal logic.
According to Amazon.ca, my long-out-of-print Apportionment of Fault in Tort (Toronto, Canada Law Book, 1981) – yup, that’s the publication year – is “#2,003,514 in Books”. The ranking is, apparently, of Amazon’s “most popular products based on sales”. Unfortunately, the site doesn’t provide an obvious way to find out what books are just ahead and just behind mine. Nor does the site provide an obvious way of finding out how many books Amazon.ca lists.