Call:
lm(formula = y ~ x)

Residuals:
     Min       1Q   Median       3Q      Max 
-0.14560 -0.03220 -0.00875 -0.00129  0.60897 

Coefficients:
                      Estimate Std. Error t value Pr(>|t|)    
(Intercept)          0.0053424  0.0287485   0.186 0.852631    
xCaribbean          -0.0045716  0.0354435  -0.129 0.897409    
xCentral America     0.0311980  0.0334194   0.934 0.350874    
xCentral Asia        0.0466439  0.0449474   1.038 0.299754    
xEastern Africa     -0.0039998  0.0326379  -0.123 0.902498    
xEastern Asia        0.0717294  0.0352095   2.037 0.042010 *  
xEastern Europe      0.0238620  0.0330920   0.721 0.471105    
xMelanesia          -0.0014970  0.0392779  -0.038 0.969608    
xMicronesia          0.0061597  0.0392779   0.157 0.875429    
xMiddle Africa      -0.0039849  0.0406565  -0.098 0.921950    
xNA                  0.1402667  0.0359668   3.900 0.000106 ***
xNorthern Africa    -0.0052345  0.0435992  -0.120 0.904471    
xNorthern America    0.0158162  0.0449474   0.352 0.725035    
xNorthern Europe     0.0245535  0.0309964   0.792 0.428552    
xPolynesia          -0.0040371  0.0392779  -0.103 0.918166    
xSouth America       0.0258466  0.0319660   0.809 0.419044    
xSouth-Eastern Asia -0.0007872  0.0327209  -0.024 0.980815    
xSouthern Africa    -0.0048072  0.0414948  -0.116 0.907804    
xSouthern Asia      -0.0037425  0.0349915  -0.107 0.914857    
xSouthern Europe     0.0794542  0.0320225   2.481 0.013332 *  
xWestern Africa     -0.0015638  0.0329928  -0.047 0.962210    
xWestern Asia        0.0294834  0.0349915   0.843 0.399752    
xWestern Europe      0.0781927  0.0310807   2.516 0.012103 *  
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

Residual standard error: 0.1037 on 689 degrees of freedom
Multiple R-squared:  0.1121,	Adjusted R-squared:  0.08375 
F-statistic: 3.954 on 22 and 689 DF,  p-value: 0.000000004991