Call:
lm(formula = y ~ x)

Residuals:
     Min       1Q   Median       3Q      Max 
-0.01798 -0.01798 -0.00211 -0.00209  0.71290 

Coefficients:
              Estimate Std. Error t value Pr(>|t|)    
(Intercept)   0.002108   0.003574   0.590 0.555541    
xNA          -0.002042   0.012971  -0.157 0.874934    
xnon-Annex I  0.015877   0.004638   3.423 0.000655 ***
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

Residual standard error: 0.0598 on 709 degrees of freedom
Multiple R-squared:  0.01737,	Adjusted R-squared:  0.0146 
F-statistic: 6.267 on 2 and 709 DF,  p-value: 0.002004