Actually, the chart shows load bearing capacity relative to the 1980s capacity (which they've assigned a value of 100). It is not a percentage, but a ratio. Val

Actually, the chart shows load bearing capacity relative to the 1980s capacity (which they've assigned a value of 100). It is not a percentage, but a ratio. Values >100 just indicate that the load bearing capacity has increased since the 1980s, which is possible.