Bug in aggregate - 95th pct for total

[NeilAgg]

I think I found a bug in aggregate.

The 95th percentile line for the total was generated using this value:
|95:bits:0:max:2|

So it only used the largest single data point from the individual sets.

It should be:
|95:bits:0:aggregate_max:2|

so it uses the largest aggregated value.