Table:
text: World's largest airlines
By Scheduled Passengers Carried (Millions)
By Scheduled Passengers Carried (Millions)
Rank_ Airline _2012 _2011 _2010 _2009
1 Delta Air Lines 164.6 163.8 162.6 161.1
2 United Airlines 140.4 141.8 145.6 144.3
3 Southwest Airlines 134.0 127.6 106.2 101.3
4 American Airlines 107.8 107.2 105.2 104.5
5 China Southern Airlines 86.5 80.7 76.5 66.3
6 US Airways 82.5 80.6 79.6 78.0
7 Ryanair 79.3 75.8 72.1 66.5
8 Lufthansa 74.7 65.5 58.9 55.6
9 China Eastern Airlines 73.1 68.7 64.9 44.0
10 Air China 72.4 69.7 60.0 41.3

Question: How many average passengers among the world's largest airlines in 2012 for 2009 more than 104.5 and 2010 less than 162.6 and 2011 less than 141.8 are what?

Question: The lowest rank less than 80.7 in 2011 and less than 73.1 in 2012 among the world's largest airlines is what?

Question: The sum of 2009 ranking 5th and 2010 under 76.5 is what among the world's largest airlines?