Call:
lm(formula = y ~ x)

Residuals:
      Min        1Q    Median        3Q       Max 
-0.259762 -0.039819 -0.001013  0.026310  0.270180 

Coefficients:
                    Estimate Std. Error t value      Pr(>|t|)    
(Intercept)          0.33379    0.05193   6.428 0.00000000243 ***
xCaribbean          -0.23378    0.05806  -4.027 0.00009711876 ***
xCentral America    -0.29036    0.05888  -4.931 0.00000252613 ***
xCentral Asia       -0.23268    0.06704  -3.471      0.000712 ***
xEastern Africa     -0.25970    0.05552  -4.678 0.00000735264 ***
xEastern Asia       -0.07395    0.06360  -1.163      0.247119    
xEastern Europe     -0.19234    0.05741  -3.350      0.001065 ** 
xMelanesia          -0.17383    0.06360  -2.733      0.007177 ** 
xMicronesia         -0.06406    0.07344  -0.872      0.384743    
xMiddle Africa      -0.23102    0.05996  -3.853      0.000185 ***
xNA                 -0.18039    0.08994  -2.006      0.047049 *  
xNorthern Africa    -0.27383    0.06360  -4.305 0.00003317957 ***
xNorthern America    0.12795    0.07344   1.742      0.083917 .  
xNorthern Europe    -0.18248    0.05689  -3.208      0.001696 ** 
xPolynesia          -0.25145    0.07344  -3.424      0.000833 ***
xSouth America      -0.29948    0.05888  -5.086 0.00000129107 ***
xSouth-Eastern Asia -0.24886    0.05806  -4.286 0.00003578116 ***
xSouthern Africa    -0.26316    0.06704  -3.925      0.000142 ***
xSouthern Asia      -0.22389    0.05996  -3.734      0.000284 ***
xSouthern Europe    -0.19684    0.05609  -3.509      0.000624 ***
xWestern Africa     -0.23668    0.05552  -4.263 0.00003915413 ***
xWestern Asia       -0.13803    0.05578  -2.475      0.014671 *  
xWestern Europe     -0.16129    0.05806  -2.778      0.006306 ** 
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

Residual standard error: 0.07344 on 126 degrees of freedom
Multiple R-squared:  0.5187,	Adjusted R-squared:  0.4347 
F-statistic: 6.173 on 22 and 126 DF,  p-value: 0.000000000009989