Call:
lm(formula = y ~ x)

Residuals:
     Min       1Q   Median       3Q      Max 
-0.02151 -0.00785 -0.00408  0.00161  0.48044 

Coefficients:
                       Estimate  Std. Error t value Pr(>|t|)  
(Intercept)          0.00188216  0.00755722   0.249   0.8034  
xCaribbean           0.00392412  0.00931717   0.421   0.6738  
xCentral America     0.00443417  0.00878509   0.505   0.6139  
xCentral Asia        0.01582033  0.01181550   1.339   0.1810  
xEastern Africa      0.00932841  0.00857965   1.087   0.2773  
xEastern Asia        0.00550188  0.00925567   0.594   0.5524  
xEastern Europe      0.00219620  0.00869901   0.252   0.8008  
xMelanesia           0.00472387  0.01032513   0.458   0.6474  
xMicronesia          0.00703261  0.01032513   0.681   0.4960  
xMiddle Africa       0.01962685  0.01068752   1.836   0.0667 .
xNA                 -0.00001852  0.00945473  -0.002   0.9984  
xNorthern Africa     0.00809279  0.01146109   0.706   0.4804  
xNorthern America    0.00597095  0.01181550   0.505   0.6135  
xNorthern Europe     0.00666642  0.00814814   0.818   0.4136  
xPolynesia           0.00334801  0.01032513   0.324   0.7458  
xSouth America       0.01506659  0.00840301   1.793   0.0734 .
xSouth-Eastern Asia  0.00936481  0.00860148   1.089   0.2766  
xSouthern Africa     0.00367626  0.01090791   0.337   0.7362  
xSouthern Asia       0.00799175  0.00919835   0.869   0.3852  
xSouthern Europe     0.00052819  0.00841788   0.063   0.9500  
xWestern Africa      0.00892057  0.00867295   1.029   0.3041  
xWestern Asia        0.00452239  0.00919835   0.492   0.6231  
xWestern Europe      0.00289815  0.00817030   0.355   0.7229  
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

Residual standard error: 0.02725 on 689 degrees of freedom
Multiple R-squared:  0.02665,	Adjusted R-squared:  -0.004429 
F-statistic: 0.8575 on 22 and 689 DF,  p-value: 0.6527