Call:
lm(formula = y ~ x)

Residuals:
     Min       1Q   Median       3Q      Max 
-0.01151 -0.00679 -0.00506  0.00025  0.48392 

Coefficients:
              Estimate Std. Error t value   Pr(>|t|)    
(Intercept)  0.0115162  0.0024653   4.671 0.00000358 ***
xAmericas   -0.0005501  0.0034518  -0.159     0.8734    
xAsia       -0.0018493  0.0034070  -0.543     0.5874    
xEurope     -0.0064500  0.0029601  -2.179     0.0297 *  
xOceania    -0.0057277  0.0043310  -1.322     0.1864    
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

Residual standard error: 0.02712 on 707 degrees of freedom
Multiple R-squared:  0.01066,	Adjusted R-squared:  0.005068 
F-statistic: 1.905 on 4 and 707 DF,  p-value: 0.1077