Call:
lm(formula = y ~ x)

Residuals:
      Min        1Q    Median        3Q       Max 
-0.042570 -0.015890 -0.005150  0.002608  0.177149 

Coefficients:
                      Estimate Std. Error t value Pr(>|t|)    
(Intercept)          0.0107737  0.0087591   1.230 0.219119    
xCaribbean          -0.0069078  0.0107990  -0.640 0.522598    
xCentral America    -0.0030857  0.0101823  -0.303 0.761942    
xCentral Asia        0.0161091  0.0136946   1.176 0.239878    
xEastern Africa     -0.0096334  0.0099442  -0.969 0.333010    
xEastern Asia        0.0187358  0.0107277   1.746 0.081171 .  
xEastern Europe      0.0149664  0.0100825   1.484 0.138161    
xMelanesia          -0.0057053  0.0119672  -0.477 0.633693    
xMicronesia         -0.0042004  0.0119672  -0.351 0.725703    
xMiddle Africa      -0.0071024  0.0123873  -0.573 0.566583    
xNA                 -0.0016759  0.0109584  -0.153 0.878499    
xNorthern Africa     0.0122109  0.0132839   0.919 0.358296    
xNorthern America    0.0009123  0.0136946   0.067 0.946908    
xNorthern Europe     0.0052350  0.0094440   0.554 0.579544    
xPolynesia          -0.0008673  0.0119672  -0.072 0.942247    
xSouth America       0.0010941  0.0097394   0.112 0.910588    
xSouth-Eastern Asia  0.0123646  0.0099695   1.240 0.215307    
xSouthern Africa    -0.0064239  0.0126427  -0.508 0.611537    
xSouthern Asia      -0.0038595  0.0106613  -0.362 0.717453    
xSouthern Europe     0.0214167  0.0097566   2.195 0.028490 *  
xWestern Africa     -0.0068811  0.0100523  -0.685 0.493870    
xWestern Asia        0.0297671  0.0106613   2.792 0.005382 ** 
xWestern Europe      0.0317972  0.0094697   3.358 0.000829 ***
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

Residual standard error: 0.03158 on 689 degrees of freedom
Multiple R-squared:  0.1568,	Adjusted R-squared:  0.1299 
F-statistic: 5.824 on 22 and 689 DF,  p-value: 0.000000000000002445