Hello Finnair FT

I've booked AY100 HKG - HEL but am also looking at other departure points SIN BKK. I had thought that AY was a quicker way to the EU but I looked at FlightAware
https://www.flightaware.com/live/flight/FIN100 and I see that AY is avoiding Russian Airspace (understandable).

Would anyone know what were historical flight time e.g.

so now AY100 is 13.5-14 hrs but what was it before?
same question with AY142 and AY146

Thanks much