Call:
lm(formula = y ~ x)

Residuals:
     Min       1Q   Median       3Q      Max 
-0.02800 -0.02350 -0.00893  0.00376  0.45662 

Coefficients:
             Estimate Std. Error t value Pr(>|t|)    
(Intercept)  0.008383   0.004261   1.967 0.049527 *  
xAmericas    0.005824   0.005966   0.976 0.329260    
xAsia        0.015124   0.005888   2.568 0.010421 *  
xEurope      0.019616   0.005116   3.834 0.000137 ***
xOceania    -0.003269   0.007485  -0.437 0.662407    
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

Residual standard error: 0.04687 on 707 degrees of freedom
Multiple R-squared:  0.03265,	Adjusted R-squared:  0.02717 
F-statistic: 5.965 on 4 and 707 DF,  p-value: 0.0001006