My friend Placegetter is correct.

Expanding a little further re Pareto's rule: This rule says - "eighty percent of your troubles will come from 20 per cent of your problems". In other words, problems will rarely have equal impact, so it is best to first concentrate on the most important.

The value of this rule is not that it provides a scientifically accurate estimation of the weightings which attach to a range of alternatives (which it does not), but simply that it is a reminder to always look for 'the vital few' issues, and to separate them from 'the trivial many', before attempting to solve problems.

Privateer