If I practice Touch and Go's from the Carrier Deck....say Ten in one session....is that one Sortie or Ten Sorties?
The problem with Statistics is how the raw data is compiled.
Mission readiness.....Day VFR....touch and go's does not require much in the way of specialized equipment thus much easier to show a high readiness rate.
So....the comparison or analysis has to understand the context and basis of the data.