| 8 | Flight operation expenses |
| 2017 | 2016 | 2015 | ||||||||||
| RMB million | RMB million | RMB million | ||||||||||
|
Jet fuel costs |
31,895 | 23,799 | 26,274 | |||||||||
|
Flight personnel payroll and welfare |
10,574 | 9,215 | 8,070 | |||||||||
|
Aircraft operating lease charges |
8,022 | 7,330 | 6,153 | |||||||||
|
Air catering expenses |
3,379 | 2,965 | 2,680 | |||||||||
|
Civil Aviation Development Fund |
2,720 | 2,565 | 2,482 | |||||||||
|
Training expenses |
1,184 | 1,120 | 1,003 | |||||||||
|
Aircraft insurance |
175 | 197 | 168 | |||||||||
|
Others |
5,029 | 4,270 | 3,582 | |||||||||
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| 62,978 | 51,461 | 50,412 | ||||||||||
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