Call:
lm(formula = y ~ x)

Residuals:
     Min       1Q   Median       3Q      Max 
-0.09713 -0.04353 -0.01787  0.02489  0.34219 

Coefficients:
             Estimate Std. Error t value    Pr(>|t|)    
(Intercept)   0.02783    0.01113   2.500      0.0135 *  
xNA          -0.01787    0.07040  -0.254      0.8000    
xnon-Annex I  0.06931    0.01297   5.343 0.000000343 ***
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

Residual standard error: 0.06952 on 146 degrees of freedom
Multiple R-squared:  0.1682,	Adjusted R-squared:  0.1568 
F-statistic: 14.76 on 2 and 146 DF,  p-value: 0.000001447