MPG Game (2)

It has been 5 months since I started driving the hybrid car.
I still can't ignore the mpg digital display on the dashboard.

Well thanks to the hybrid economic fuel efficiency (and thanks to myself for not driving a lot), I need to visit the gas station only once per month.

I keep track of my MPG at each refueling and here is the my record so far.
Look at the improvement in MPG column over the past 5 months!
I'm getting better at getting a higher MPG value since January.
Well the part of the reason could be the season. Expected MPG is lower in winter season.
But I think I'm driving more gently these days, avoiding sudden acceleration and frequent braking to improve MPG. I will visit the gas station soon, but I'm sure that I will get over 40.00 this time.
Currently the annoying digital display says 45.7 mpg!
I hope I can maintain this high standard.

	Miles	MPG
1/27/13	?	?
2/19/13	400	34.28
3/31/13	398.4	36.72
4/21/13	429.8	38.61
5/22/13	400.2	39.77
6/xx/13	?	?