T1 v T2 traffic is scewed a bit as EIR are T1 , a lot of flights and pax involved, also EI MAINLINE still have arrivals and departures from T1
I know these are counted as T2 pax but still it does scew any assumptions we may make.
Aer Lingus Regional passengers are included in T1 total its just the EI flights that operate from Pier B are included in T2.
Just to add a little balance to LHR connections debate, passengers numbers for the first 10 months of 2012 between Dublin and LHR are up 25,220 over 2011.