reg tax

F(2, 27) = 3574.31 R-squared = 0.9962

gdp tfa

Prob > F = 0.0000 Adj R-squared = 0.9960

tax

Coef.

Std. Err.

t

P > t

95% CI下限

95% CI上限

gdp

0.1232349

0.0115799

10.64

0.000

0.099475

0.1469949

tfa

0.0729449

0.015205

4.80

0.000

0.0417468

0.1041429

_cons

−573.8967

1025.216

−0.56

0.580

−2677.466

1529.673