Group number

Per capita GDP (exchange method)

Number of samples

The average adjustment of K value

1

200 - 850

13

−0.110529273

2

851 - 1350

14

−0.057415362

3

1351 - 2000

14

−0.015439572

4

2001 - 3700

14

−0.102762526

5

3701 - 5500

14

−0.009780426

6

5501 - 10,500

15

0.15983

7

10,500 - 15,000

13

−0.159294905

8

15,001 - 25,000

12

−0.005223157

9

25,001 - 47,000

15

−0.067210701

10

47,001 - 120,000

15

−0.058948123