Call:
lm(formula = y ~ x)

Residuals:
     Min       1Q   Median       3Q      Max 
-0.13812 -0.00340 -0.00172 -0.00059  0.50152 

Coefficients:
                      Estimate Std. Error t value      Pr(>|t|)    
(Intercept)          0.0036315  0.0191115   0.190        0.8494    
xCaribbean          -0.0019359  0.0235623  -0.082        0.9345    
xCentral America    -0.0019644  0.0222167  -0.088        0.9296    
xCentral Asia       -0.0017208  0.0298803  -0.058        0.9541    
xEastern Africa     -0.0029889  0.0216972  -0.138        0.8905    
xEastern Asia        0.0012772  0.0234067   0.055        0.9565    
xEastern Europe      0.0021810  0.0219990   0.099        0.9211    
xMelanesia          -0.0017158  0.0261113  -0.066        0.9476    
xMicronesia         -0.0034815  0.0261113  -0.133        0.8940    
xMiddle Africa      -0.0003460  0.0270278  -0.013        0.9898    
xNA                 -0.0009697  0.0239102  -0.041        0.9677    
xNorthern Africa    -0.0014421  0.0289841  -0.050        0.9603    
xNorthern America   -0.0018353  0.0298803  -0.061        0.9510    
xNorthern Europe     0.1344911  0.0206059   6.527 0.00000000013 ***
xPolynesia          -0.0033002  0.0261113  -0.126        0.8995    
xSouth America      -0.0019100  0.0212505  -0.090        0.9284    
xSouth-Eastern Asia -0.0015526  0.0217524  -0.071        0.9431    
xSouthern Africa     0.0016811  0.0275851   0.061        0.9514    
xSouthern Asia      -0.0012772  0.0232618  -0.055        0.9562    
xSouthern Europe    -0.0019049  0.0212880  -0.089        0.9287    
xWestern Africa     -0.0025794  0.0219331  -0.118        0.9064    
xWestern Asia       -0.0002236  0.0232618  -0.010        0.9923    
xWestern Europe      0.0445207  0.0206619   2.155        0.0315 *  
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

Residual standard error: 0.06891 on 689 degrees of freedom
Multiple R-squared:  0.2918,	Adjusted R-squared:  0.2692 
F-statistic:  12.9 on 22 and 689 DF,  p-value: < 0.00000000000000022