Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Rank | Airline | 2012 | 2011 | 2010 | 2009 |
| --- | --- | --- | --- | --- | --- |
| 1.0 | Delta Air Lines | 164.6 | 163.8 | 162.6 | 161.1 |
| 2.0 | United Airlines | 140.4 | 141.8 | 145.6 | 144.3 |
| 3.0 | Southwest Airlines | 134.0 | 127.6 | 106.2 | 101.3 |
| 4.0 | American Airlines | 107.8 | 107.2 | 105.2 | 104.5 |
| 5.0 | China Southern Airlines | 86.5 | 80.7 | 76.5 | 66.3 |
| 6.0 | US Airways | 82.5 | 80.6 | 79.6 | 78.0 |
| 7.0 | Ryanair | 79.3 | 75.8 | 72.1 | 66.5 |
| 8.0 | Lufthansa | 74.7 | 65.5 | 58.9 | 55.6 |
| 9.0 | China Eastern Airlines | 73.1 | 68.7 | 64.9 | 44.0 |
| 10.0 | Air China | 72.4 | 69.7 | 60.0 | 41.3 |
Question:
The lowest rank with 2011 less than 80.7 and 2012 less than 73.1 is what?
Answer:
10.0