Call:
lm(formula = y ~ x)

Residuals:
     Min       1Q   Median       3Q      Max 
-0.13032 -0.03524 -0.01347 -0.00699  0.55107 

Coefficients:
              Estimate Std. Error t value             Pr(>|t|)    
(Intercept)   0.035351   0.003920   9.018 < 0.0000000000000002 ***
xNA           0.094984   0.014228   6.676      0.0000000000496 ***
xnon-Annex I -0.021879   0.005088  -4.300      0.0000194593288 ***
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

Residual standard error: 0.06559 on 709 degrees of freedom
Multiple R-squared:    0.1,	Adjusted R-squared:  0.09748 
F-statistic:  39.4 on 2 and 709 DF,  p-value: < 0.00000000000000022