Call:
lm(formula = y ~ x)

Residuals:
      Min        1Q    Median        3Q       Max 
-0.088053 -0.014404 -0.002597  0.008430  0.221353 

Coefficients:
                       Estimate  Std. Error t value Pr(>|t|)   
(Intercept)          0.01433141  0.02906198   0.493  0.62278   
xCaribbean          -0.00460223  0.03249228  -0.142  0.88759   
xCentral America     0.04971403  0.03295319   1.509  0.13390   
xCentral Asia        0.03066899  0.03751885   0.817  0.41523   
xEastern Africa      0.01569081  0.03106856   0.505  0.61441   
xEastern Asia        0.01560508  0.03559351   0.438  0.66183   
xEastern Europe     -0.01232479  0.03212923  -0.384  0.70192   
xMelanesia           0.00799433  0.03559351   0.225  0.82265   
xMicronesia         -0.01429210  0.04109985  -0.348  0.72862   
xMiddle Africa       0.05726602  0.03355788   1.706  0.09038 . 
xNA                 -0.01431484  0.05033682  -0.284  0.77659   
xNorthern Africa     0.07427596  0.03559351   2.087  0.03892 * 
xNorthern America   -0.00002443  0.04109985  -0.001  0.99953   
xNorthern Europe    -0.01171755  0.03183580  -0.368  0.71344   
xPolynesia           0.01033070  0.04109985   0.251  0.80195   
xSouth America       0.02964104  0.03295319   0.899  0.37011   
xSouth-Eastern Asia  0.02879038  0.03249228   0.886  0.37727   
xSouthern Africa     0.00521040  0.03751885   0.139  0.88977   
xSouthern Asia       0.03423233  0.03355788   1.020  0.30964   
xSouthern Europe     0.00008914  0.03139053   0.003  0.99774   
xWestern Africa      0.09003802  0.03106856   2.898  0.00443 **
xWestern Asia       -0.01039689  0.03121757  -0.333  0.73965   
xWestern Europe     -0.01431556  0.03249228  -0.441  0.66027   
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

Residual standard error: 0.0411 on 126 degrees of freedom
Multiple R-squared:  0.4212,	Adjusted R-squared:  0.3202 
F-statistic: 4.168 on 22 and 126 DF,  p-value: 0.0000001506