Call:
lm(formula = y ~ x)

Residuals:
      Min        1Q    Median        3Q       Max 
-0.085782 -0.013795 -0.004961  0.005539  0.182754 

Coefficients:
                      Estimate Std. Error t value Pr(>|t|)   
(Intercept)          0.0018994  0.0230960   0.082  0.93459   
xCaribbean           0.0285830  0.0258221   1.107  0.27044   
xCentral America     0.0838877  0.0261884   3.203  0.00172 **
xCentral Asia        0.0161310  0.0298168   0.541  0.58946   
xEastern Africa      0.0174165  0.0246907   0.705  0.48187   
xEastern Asia       -0.0011415  0.0282867  -0.040  0.96787   
xEastern Europe      0.0038472  0.0255336   0.151  0.88048   
xMelanesia           0.0119673  0.0282867   0.423  0.67297   
xMicronesia          0.0013102  0.0326627   0.040  0.96807   
xMiddle Africa       0.0211440  0.0266690   0.793  0.42937   
xNA                 -0.0018828  0.0400035  -0.047  0.96253   
xNorthern Africa     0.0293108  0.0282867   1.036  0.30209   
xNorthern America    0.0295989  0.0326627   0.906  0.36656   
xNorthern Europe     0.0073037  0.0253004   0.289  0.77330   
xPolynesia          -0.0018908  0.0326627  -0.058  0.95393   
xSouth America       0.0353650  0.0261884   1.350  0.17931   
xSouth-Eastern Asia  0.0264331  0.0258221   1.024  0.30796   
xSouthern Africa     0.0325048  0.0298168   1.090  0.27773   
xSouthern Asia       0.0201378  0.0266690   0.755  0.45160   
xSouthern Europe     0.0030785  0.0249466   0.123  0.90198   
xWestern Africa      0.0258755  0.0246907   1.048  0.29665   
xWestern Asia        0.0119129  0.0248091   0.480  0.63193   
xWestern Europe     -0.0006284  0.0258221  -0.024  0.98062   
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

Residual standard error: 0.03266 on 126 degrees of freedom
Multiple R-squared:  0.2678,	Adjusted R-squared:  0.1399 
F-statistic: 2.094 on 22 and 126 DF,  p-value: 0.005819