reg tax

F(2, 27) = 19246.10 R-squared = 0.9930

gdp trs

Prob > F = 0.0000 Adj R-squared = 0.9925

tax

Coef.

Std. Err.

t

P > t

95% CI下限

95% CI上限

gdp

0.1859276

0.0410962

4.52

0.000

0.1016051

0.2702502

trs

−0.0189157

0.0961362

−0.20

0.845

−0.2161709

0.1783395

_cons

−3017.288

1362.9

−2.21

0.035

−5813.727

−220.8492