Call:
lm(formula = y ~ x)

Residuals:
     Min       1Q   Median       3Q      Max 
-0.03344 -0.00703 -0.00147 -0.00007  0.46338 

Coefficients:
                       Estimate  Std. Error t value Pr(>|t|)   
(Intercept)          0.00000870  0.01052332   0.001  0.99934   
xCaribbean           0.00001209  0.01297402   0.001  0.99926   
xCentral America     0.00073010  0.01223311   0.060  0.95243   
xCentral Asia        0.00072988  0.01645292   0.044  0.96463   
xEastern Africa      0.00014507  0.01194705   0.012  0.99032   
xEastern Asia        0.00216022  0.01288839   0.168  0.86694   
xEastern Europe      0.02643456  0.01211325   2.182  0.02943 * 
xMelanesia          -0.00000314  0.01437759   0.000  0.99983   
xMicronesia          0.00001625  0.01437759   0.001  0.99910   
xMiddle Africa       0.00149088  0.01488223   0.100  0.92023   
xNA                  0.00147054  0.01316559   0.112  0.91110   
xNorthern Africa     0.00087181  0.01595941   0.055  0.95645   
xNorthern America    0.00048539  0.01645292   0.030  0.97647   
xNorthern Europe     0.02378882  0.01134617   2.097  0.03639 * 
xPolynesia           0.00006712  0.01437759   0.005  0.99628   
xSouth America       0.00621286  0.01170108   0.531  0.59561   
xSouth-Eastern Asia  0.00247585  0.01197744   0.207  0.83630   
xSouthern Africa     0.00292875  0.01518911   0.193  0.84716   
xSouthern Asia       0.00050088  0.01280858   0.039  0.96882   
xSouthern Europe     0.03343296  0.01172178   2.852  0.00447 **
xWestern Africa      0.00026919  0.01207697   0.022  0.98222   
xWestern Asia        0.00550440  0.01280858   0.430  0.66752   
xWestern Europe      0.00703184  0.01137703   0.618  0.53673   
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

Residual standard error: 0.03794 on 689 degrees of freedom
Multiple R-squared:  0.08163,	Adjusted R-squared:  0.05231 
F-statistic: 2.784 on 22 and 689 DF,  p-value: 0.00002635