1

1

2

3

-

-

-

4

5

-

6

-

- ：

7

-

-

8

-

-

9

10

11

12

41%

36%

19%

3%

Flights

Site electricity

Home-workers

Other

84%

14%

2% 1%

Flights

Site electricity

Rail travel

Other

13

VP

 

14

15

16

17