Table 2 Sources and percentile distribution of country-level characteristics ^a

Physical environment

Average Yearly Temperature

CT^b

° Celsius

8.57

14.08

20.15

26.03

27.00

Motor Vehicle Density

WB^c, CIA

Ln(Motor vehicles per 1000 people)

1.94

2.65

4.47

5.15

5.75

Rural Population

WB^c

0 – 20

4.86

7.00

10.14

13.28

15.58

Economic environment

GDP, per capita

WB^c, EIU

Ln( Current US $)

5.67

6.12

7.22

8.20

8.78

Political environment

Average Governance Indicator

WB^c

0 – 5

1.47

1.77

2.27

2.79

3.27

Socio-cultural Environment

Literacy Rate

UIS^d

0 – 20

9.91

13.82

17.77

19.40

19.89

Social Institutions & Gender Index (SIGI)

OECD, HDR^e

0 – 10

7.73

8.52

9.55

9.81

9.94