Call:
lm(formula = y ~ x)

Residuals:
     Min       1Q   Median       3Q      Max 
-0.04620 -0.01676 -0.00707  0.00484  0.38580 

Coefficients:
                      Estimate Std. Error t value Pr(>|t|)  
(Intercept)          0.0101869  0.0101272   1.006   0.3148  
xCaribbean          -0.0055645  0.0124856  -0.446   0.6560  
xCentral America     0.0065790  0.0117726   0.559   0.5765  
xCentral Asia        0.0146720  0.0158336   0.927   0.3544  
xEastern Africa     -0.0010025  0.0114973  -0.087   0.9305  
xEastern Asia        0.0096213  0.0124032   0.776   0.4382  
xEastern Europe      0.0159791  0.0116573   1.371   0.1709  
xMelanesia          -0.0025816  0.0138364  -0.187   0.8520  
xMicronesia         -0.0071417  0.0138364  -0.516   0.6059  
xMiddle Africa       0.0042778  0.0143220   0.299   0.7653  
xNA                 -0.0067092  0.0126700  -0.530   0.5966  
xNorthern Africa    -0.0008019  0.0153586  -0.052   0.9584  
xNorthern America    0.0233715  0.0158336   1.476   0.1404  
xNorthern Europe     0.0186804  0.0109191   1.711   0.0876 .
xPolynesia          -0.0060860  0.0138364  -0.440   0.6602  
xSouth America       0.0033950  0.0112606   0.301   0.7631  
xSouth-Eastern Asia  0.0092812  0.0115266   0.805   0.4210  
xSouthern Africa     0.0360172  0.0146173   2.464   0.0140 *
xSouthern Asia      -0.0038403  0.0123264  -0.312   0.7555  
xSouthern Europe     0.0180956  0.0112805   1.604   0.1091  
xWestern Africa      0.0174984  0.0116224   1.506   0.1326  
xWestern Asia        0.0240462  0.0123264   1.951   0.0515 .
xWestern Europe      0.0061786  0.0109488   0.564   0.5727  
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

Residual standard error: 0.03651 on 689 degrees of freedom
Multiple R-squared:  0.06889,	Adjusted R-squared:  0.03916 
F-statistic: 2.317 on 22 and 689 DF,  p-value: 0.0006076