Call:
lm(formula = y ~ x)

Residuals:
     Min       1Q   Median       3Q      Max 
-0.06035 -0.02603 -0.01165  0.00442  0.36374 

Coefficients:
                     Estimate Std. Error t value Pr(>|t|)    
(Intercept)         0.0007996  0.0140847   0.057  0.95474    
xCaribbean          0.0191603  0.0173648   1.103  0.27024    
xCentral America    0.0252496  0.0163731   1.542  0.12350    
xCentral Asia       0.0025507  0.0220210   0.116  0.90782    
xEastern Africa     0.0164395  0.0159902   1.028  0.30427    
xEastern Asia       0.0121845  0.0172501   0.706  0.48021    
xEastern Europe     0.0498601  0.0162127   3.075  0.00219 ** 
xMelanesia          0.0141638  0.0192433   0.736  0.46196    
xMicronesia         0.0067943  0.0192433   0.353  0.72414    
xMiddle Africa      0.0084517  0.0199188   0.424  0.67147    
xNA                 0.0108466  0.0176212   0.616  0.53840    
xNorthern Africa    0.0285753  0.0213605   1.338  0.18141    
xNorthern America   0.0152374  0.0220210   0.692  0.48920    
xNorthern Europe    0.0380007  0.0151860   2.502  0.01257 *  
xPolynesia          0.0065444  0.0192433   0.340  0.73390    
xSouth America      0.0405697  0.0156610   2.590  0.00979 ** 
xSouth-Eastern Asia 0.0191054  0.0160309   1.192  0.23376    
xSouthern Africa    0.0084332  0.0203295   0.415  0.67840    
xSouthern Asia      0.0096267  0.0171433   0.562  0.57461    
xSouthern Europe    0.0595495  0.0156887   3.796  0.00016 ***
xWestern Africa     0.0204811  0.0161641   1.267  0.20556    
xWestern Asia       0.0424323  0.0171433   2.475  0.01356 *  
xWestern Europe     0.0285515  0.0152273   1.875  0.06121 .  
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

Residual standard error: 0.05078 on 689 degrees of freedom
Multiple R-squared:  0.08966,	Adjusted R-squared:  0.06059 
F-statistic: 3.085 on 22 and 689 DF,  p-value: 0.000003138