Call:
lm(formula = y ~ x)

Residuals:
     Min       1Q   Median       3Q      Max 
-0.02324 -0.02076 -0.02075 -0.00723  0.57535 

Coefficients:
              Estimate Std. Error t value      Pr(>|t|)    
(Intercept)   0.023240   0.003840   6.052 0.00000000231 ***
xNA          -0.009297   0.013937  -0.667         0.505    
xnon-Annex I -0.002480   0.004984  -0.498         0.619    
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

Residual standard error: 0.06425 on 709 degrees of freedom
Multiple R-squared:  0.0008141,	Adjusted R-squared:  -0.002004 
F-statistic: 0.2888 on 2 and 709 DF,  p-value: 0.7492