Call:
lm(formula = y ~ x)

Residuals:
      Min        1Q    Median        3Q       Max 
-0.087363 -0.020540 -0.002225  0.018720  0.092184 

Coefficients:
                      Estimate Std. Error t value Pr(>|t|)  
(Intercept)          0.0199690  0.0243401   0.820   0.4135  
xCaribbean           0.0584250  0.0272131   2.147   0.0337 *
xCentral America     0.0300944  0.0275991   1.090   0.2776  
xCentral Asia        0.0210013  0.0314229   0.668   0.5051  
xEastern Africa      0.0352865  0.0260207   1.356   0.1775  
xEastern Asia        0.0013905  0.0298104   0.047   0.9629  
xEastern Europe      0.0005874  0.0269090   0.022   0.9826  
xMelanesia           0.0502607  0.0298104   1.686   0.0943 .
xMicronesia          0.0394810  0.0344221   1.147   0.2536  
xMiddle Africa       0.0456501  0.0281055   1.624   0.1068  
xNA                 -0.0199525  0.0421583  -0.473   0.6368  
xNorthern Africa     0.0064563  0.0298104   0.217   0.8289  
xNorthern America   -0.0093671  0.0344221  -0.272   0.7860  
xNorthern Europe    -0.0199517  0.0266632  -0.748   0.4557  
xPolynesia           0.0256567  0.0344221   0.745   0.4574  
xSouth America       0.0021104  0.0275991   0.076   0.9392  
xSouth-Eastern Asia  0.0674200  0.0272131   2.477   0.0146 *
xSouthern Africa     0.0319500  0.0314229   1.017   0.3112  
xSouthern Asia       0.0470065  0.0281055   1.672   0.0969 .
xSouthern Europe    -0.0118461  0.0262903  -0.451   0.6531  
xWestern Africa      0.0607166  0.0260207   2.333   0.0212 *
xWestern Asia        0.0099015  0.0261455   0.379   0.7055  
xWestern Europe     -0.0177276  0.0272131  -0.651   0.5159  
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

Residual standard error: 0.03442 on 126 degrees of freedom
Multiple R-squared:  0.4505,	Adjusted R-squared:  0.3546 
F-statistic: 4.696 on 22 and 126 DF,  p-value: 0.00000001089