Call:
lm(formula = y ~ x)

Residuals:
     Min       1Q   Median       3Q      Max 
-0.03660 -0.03151 -0.01517 -0.00896  0.54982 

Coefficients:
            Estimate Std. Error t value Pr(>|t|)    
(Intercept) 0.011055   0.006219   1.778 0.075894 .  
xAmericas   0.020458   0.008708   2.349 0.019077 *  
xAsia       0.004116   0.008595   0.479 0.632124    
xEurope     0.025548   0.007467   3.421 0.000659 ***
xOceania    0.007059   0.010926   0.646 0.518447    
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

Residual standard error: 0.06841 on 707 degrees of freedom
Multiple R-squared:  0.02385,	Adjusted R-squared:  0.01833 
F-statistic: 4.319 on 4 and 707 DF,  p-value: 0.001856