Variable

Obs

Mean

Std. Dev.

Min

Max

year

260

2015.5

2.877821

2011

2020

GDP

260

27024.68

21126.95

1370.4

111151.6

RD

260

3,976,365

4,784,392

57,760

2.05e + 07

ET

260

2039.392

1505.148

185.28

6940

CM

260

11123.19

8530.57

413.4

42951.8

UE

260

14.46754

6.83044

0.8

29.71

TN

260

17161.61

24844.94

94

166,140