Here's a compilation for Decathlon total score ranking by each category such as running, jumping and throwing events. It would cover for the last 60 years and target for whole results without any restriction, therefore it includes marks which were achived at even dnf competitions.
The decathlon is one of the most grueling competitions in all of sport. It consists of 10 events, negotiated over 2 days. Points are awarded based on the order of finish as well as the distance, height or time achieved in each event. Final
Here's a compilation for individual event marks which have been achieved at Decathlon competitions. Covering almost all of stats after 1958 and targeted Decathlon score might be at least above 7200 every year.