年份

X₁

X₂

X₃

X₄

X₅

X₆

X₇

X₈

Y

2008

6016.6

42.19327

1764.7

6451

4543

14,538

18.54873

100.0

150.93

2009

6574.4

44.40405

2051.1

7127

4571

15,830

19.18789

100.4

157.04

2010

7735.3

43.66088

2555.8

8155

4602

18,709

19.7071

104.1

164.09

2011

9523.1

45.31193

3105.9

9820

4631

22,045

22.95569

109.2

170.42

2012

11,097.4

45.04298

3597.9

11,571

4659

24,163

22.13137

112.2

170.56

2013

12,825.5

46.36466

4112.6

12,578

4687

25,909

20.08433

115.6

173.01

2014

14,041.7

47.41377

4632.9

13,772

4714

27,489

20.43235

118.4

178.04

2015

14,960.0

49.39171

5103.2

15,223

4742

28,883

23.72363

120.7

176.59

2016

16,369.0

51.29269

5722.9

16,720

4771

28,996

24.69063

122.5

174.46

2017

18,486.0

53.17429

6423.1

18,348

4801

30,000

24.74341

123.6

175.05

2018

20,880.6

53.22883

9197.3

20,084

4830

31,000

24.91366

125.6

177.84