Call:
lm(formula = y ~ x)

Residuals:
      Min        1Q    Median        3Q       Max 
-0.059705 -0.020401 -0.005744  0.016043  0.128491 

Coefficients:
                      Estimate Std. Error t value Pr(>|t|)   
(Intercept)          0.0307724  0.0243003   1.266  0.20773   
xCaribbean           0.0269396  0.0271685   0.992  0.32331   
xCentral America     0.0107087  0.0275539   0.389  0.69819   
xCentral Asia        0.0213566  0.0313715   0.681  0.49727   
xEastern Africa      0.0701712  0.0259781   2.701  0.00786 **
xEastern Asia        0.0156877  0.0297616   0.527  0.59904   
xEastern Europe      0.0102148  0.0268650   0.380  0.70442   
xMelanesia           0.0457320  0.0297616   1.537  0.12690   
xMicronesia         -0.0016433  0.0343658  -0.048  0.96194   
xMiddle Africa       0.0258621  0.0280595   0.922  0.35845   
xNA                 -0.0025984  0.0420893  -0.062  0.95087   
xNorthern Africa     0.0029995  0.0297616   0.101  0.91988   
xNorthern America   -0.0053187  0.0343658  -0.155  0.87725   
xNorthern Europe     0.0040081  0.0266196   0.151  0.88056   
xPolynesia           0.0532878  0.0343658   1.551  0.12350   
xSouth America      -0.0083772  0.0275539  -0.304  0.76161   
xSouth-Eastern Asia  0.0289588  0.0271685   1.066  0.28851   
xSouthern Africa     0.0249025  0.0313715   0.794  0.42881   
xSouthern Asia       0.0091955  0.0280595   0.328  0.74367   
xSouthern Europe     0.0031455  0.0262473   0.120  0.90480   
xWestern Africa      0.0453571  0.0259781   1.746  0.08325 . 
xWestern Asia       -0.0009995  0.0261027  -0.038  0.96952   
xWestern Europe     -0.0086354  0.0271685  -0.318  0.75113   
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

Residual standard error: 0.03437 on 126 degrees of freedom
Multiple R-squared:  0.3529,	Adjusted R-squared:  0.2399 
F-statistic: 3.123 on 22 and 126 DF,  p-value: 0.00003167