Our data isn’t saved in a way for quick analysis like this. It’s also tough that a lot of people don’t do true all out efforts for these time periods (I know I haven’t in a long long time).
I’ve only ever done them outside. What about V02 max efforts, say 5mins W/kg? I’ve found that these shorter lengths of time, say 30sec to 5min are by far the deciding factor in most road races. Either your actual max effort or your ability to repeat them.
I’ve obviously seen the Coggan table, but it is miles away from actual reality for road cyclists. It includes different cycling disciplines, inc track cyclists, which dramatically skews the results for shorter durations.
So far, Cycling Analytics seems to have the best effort comparison curve for road cyclists. It’s based on their athletes only and shows significantly lower W/kg over shorter durations than the Coggan table.