Call:
lm(formula = y ~ x)

Residuals:
     Min       1Q   Median       3Q      Max 
-0.06412 -0.02703 -0.01458  0.02166  0.26997 

Coefficients:
              Estimate Std. Error t value             Pr(>|t|)    
(Intercept)   0.046729   0.002670  17.504 < 0.0000000000000002 ***
xNA           0.017404   0.009690   1.796               0.0729 .  
xnon-Annex I -0.019695   0.003465  -5.684         0.0000000192 ***
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

Residual standard error: 0.04467 on 709 degrees of freedom
Multiple R-squared:  0.05561,	Adjusted R-squared:  0.05294 
F-statistic: 20.87 on 2 and 709 DF,  p-value: 0.000000001554