1.
1

2.
±
±
±
±
±
±
±
±
±
±
±
±
±
±
±
±
±
±
±
± ± ±

3.
6

4.
7

5.
8

6.
9

7.
10

8.
11

9.
12
14
11
8
11
14
6
5
6
26

10.
13




11.
14

12.
66 61 81
16

13.
17

14.
18

15.
20

16.
21

17.
22

18.
24

19.
25

20.
26

21.
27

22.
28

23.
29
*This comparison is among owners in countries surveyed in both 2013 and 2014

24.
30

25.
31

26.
32

27.
33

28.
88
12
34
91
9
85
15

29.
35

30.
37

31.
38

32.
40

33.
41

34.
42

35.
44

36.
45

37.
46

38.
47