Call:
lm(formula = y ~ x)

Residuals:
     Min       1Q   Median       3Q      Max 
-0.08952 -0.02251 -0.00759  0.00180  0.38062 

Coefficients:
            Estimate Std. Error t value            Pr(>|t|)    
(Intercept) 0.001699   0.005852   0.290              0.7716    
xAmericas   0.005904   0.008193   0.721              0.4714    
xAsia       0.020822   0.008087   2.575              0.0102 *  
xEurope     0.087822   0.007026  12.499 <0.0000000000000002 ***
xOceania    0.011960   0.010280   1.163              0.2451    
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

Residual standard error: 0.06437 on 707 degrees of freedom
Multiple R-squared:  0.2659,	Adjusted R-squared:  0.2618 
F-statistic: 64.02 on 4 and 707 DF,  p-value: < 0.00000000000000022