Call:
lm(formula = y ~ x)

Residuals:
     Min       1Q   Median       3Q      Max 
-0.13475 -0.04822  0.00119  0.03554  0.33673 

Coefficients:
             Estimate Std. Error t value      Pr(>|t|)    
(Intercept)  0.040604   0.013181   3.081       0.00247 ** 
xNA          0.001185   0.083362   0.014       0.98868    
xnon-Annex I 0.094164   0.015359   6.131 0.00000000776 ***
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

Residual standard error: 0.08231 on 146 degrees of freedom
Multiple R-squared:  0.2077,	Adjusted R-squared:  0.1968 
F-statistic: 19.14 on 2 and 146 DF,  p-value: 0.00000004164