Call:
lm(formula = y ~ x)

Residuals:
     Min       1Q   Median       3Q      Max 
-0.04422 -0.02679 -0.00991  0.00715  0.33050 

Coefficients:
              Estimate Std. Error t value             Pr(>|t|)    
(Intercept)   0.009929   0.002832   3.506             0.000483 ***
xNA          -0.005172   0.010278  -0.503             0.614946    
xnon-Annex I  0.034295   0.003675   9.331 < 0.0000000000000002 ***
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

Residual standard error: 0.04738 on 709 degrees of freedom
Multiple R-squared:  0.1165,	Adjusted R-squared:  0.1141 
F-statistic: 46.77 on 2 and 709 DF,  p-value: < 0.00000000000000022