I was intrigued enough by the press numbers on these tables to plot the "advanced" values for these lifts w.r.t. bodyweight for different exercises. Here's the plot. If the table is to be believed, it looks like lifters with lower bodyweights have an advantage when it comes to weight lifted to bodyweight ratio.

There also seems to be a trend for diminishing returns with increase in bodyweight. Here's a plot showing the %age increase expected for advanced lifters as they move up by one weight class.

Obviously, the absolute numbers dont have much meaning on their own, but I think the general trend that comes out is interesting.