Call:
lm(formula = y ~ x)

Residuals:
     Min       1Q   Median       3Q      Max 
-0.12092 -0.06120 -0.01544  0.01452  0.43956 

Coefficients:
             Estimate Std. Error t value             Pr(>|t|)    
(Intercept)   0.16883    0.01404  12.029 < 0.0000000000000002 ***
xNA          -0.01544    0.08877  -0.174                0.862    
xnon-Annex I -0.10740    0.01636  -6.567       0.000000000844 ***
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

Residual standard error: 0.08765 on 146 degrees of freedom
Multiple R-squared:  0.2301,	Adjusted R-squared:  0.2196 
F-statistic: 21.82 on 2 and 146 DF,  p-value: 0.000000005104