HPS/JTS Napoleon series, where to start?

[BigDuke66]

Thanks.
Just out of curiosity I looked at the number of finished games per title, interesting allocation I would say:
Games finished per year - title
12.676 - Eckmuhl Campaign
8.151 - Napoleon's Russian Campaign
7.807 - Wagram Campaign
18.812 - Waterloo Campaign
4.963 - Jena-Auerstaedt Campaign
4.793 - Austerlitz Campaign
7.878 - Leipzig Campaign
3.399 - 1814 Campaign
6.145 - Campaign Bautzen

I think it's understandable why Waterloo busts the chart but why Austerlitz is so far back that even the new Leipzig and Bautzen have more finished games despite being much younger wonders me a bit.