Call:
lm(formula = y ~ x)

Residuals:
      Min        1Q    Median        3Q       Max 
-0.034593 -0.023966 -0.002584  0.003351  0.198130 

Coefficients:
              Estimate Std. Error t value            Pr(>|t|)    
(Intercept)   0.002589   0.002011   1.287               0.198    
xNA          -0.002563   0.007300  -0.351               0.726    
xnon-Annex I  0.032004   0.002611  12.260 <0.0000000000000002 ***
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

Residual standard error: 0.03366 on 709 degrees of freedom
Multiple R-squared:  0.1836,	Adjusted R-squared:  0.1813 
F-statistic: 79.72 on 2 and 709 DF,  p-value: < 0.00000000000000022