Skaran,
Taz hit the nail on the head. The paper strenght of an Austrian battalion in DKK is 24 figures. At Kolin, several units were slightly under-strength, hence a few have just 20 figures.
I could well have messed up the paper strength of Saxon cavalry, so if you have better information, then feel free to use the strength you think is more historically accurate.
Our rule of thumb when giving unit sizes is to work out what the full paper strength was, then reduce the total slightly, rounding down as it were, to reflect normal non-batle campaign losses, and to produce a neater unit size (e.g. 16 figures, rather than 17 etc.).
I hope that helps
Angus Konstam
www.edinburghwargames.com