Call:
lm(formula = y ~ x)

Residuals:
     Min       1Q   Median       3Q      Max 
-0.04534 -0.02226 -0.01431  0.00878  0.26354 

Coefficients:
              Estimate Std. Error t value Pr(>|t|)    
(Intercept)   0.014326   0.007162   2.000 0.047339 *  
xNA          -0.014309   0.045299  -0.316 0.752541    
xnon-Annex I  0.031013   0.008346   3.716 0.000288 ***
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

Residual standard error: 0.04473 on 146 degrees of freedom
Multiple R-squared:  0.09031,	Adjusted R-squared:  0.07784 
F-statistic: 7.247 on 2 and 146 DF,  p-value: 0.0009986