What I find intriguing is the inconsistency between the tables, passenger numbers, passenger km, how some operators seem to be getting growth with people travelling further, whilst others seem to have journeys getting shorter on average. (Simply divide the distance by passengers to find average journey length)
Then the passenger train km (table 5) has generally grown less than passenger km, so clearly some trains are busier. This suggests operators are not being responsive, only partly increasing capacity.
Table 6 gives the vehicle km. I realise a token number of operators have introduced vehicles with more seats, but the opposite is true in some cases too with reduced seats in some areas. Of course dividing table 6 by table 5 shows average number of vehicles. Clearly some operators are shortening trains, even though passenger numbers are up.
Does show up big mismatches, eg cross country vehicle km increased 8% less than passenger km, so clearly not keeping up (and I don't know if XC are sneaky and include locked out vehicles in their figures, so it's even more crammed)