Call:
lm(formula = y ~ x)

Residuals:
     Min       1Q   Median       3Q      Max 
-0.04012 -0.03416 -0.01113 -0.00818  0.46422 

Coefficients:
              Estimate Std. Error t value Pr(>|t|)    
(Intercept)  0.0111329  0.0053488   2.081 0.037759 *  
xAmericas   -0.0000611  0.0074890  -0.008 0.993493    
xAsia        0.0023506  0.0073918   0.318 0.750578    
xEurope      0.0230945  0.0064222   3.596 0.000346 ***
xOceania     0.0289868  0.0093966   3.085 0.002116 ** 
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

Residual standard error: 0.05884 on 707 degrees of freedom
Multiple R-squared:  0.0387,	Adjusted R-squared:  0.03326 
F-statistic: 7.115 on 4 and 707 DF,  p-value: 0.00001282