Call:
lm(formula = y ~ x)

Residuals:
     Min       1Q   Median       3Q      Max 
-0.05483 -0.04249 -0.03023  0.01579  0.41665 

Coefficients:
             Estimate Std. Error t value     Pr(>|t|)    
(Intercept)  0.034955   0.006240   5.602 0.0000000304 ***
xAmericas    0.019878   0.008737   2.275       0.0232 *  
xAsia        0.017170   0.008623   1.991       0.0468 *  
xEurope      0.007547   0.007492   1.007       0.3141    
xOceania    -0.004709   0.010962  -0.430       0.6677    
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

Residual standard error: 0.06864 on 707 degrees of freedom
Multiple R-squared:  0.01334,	Adjusted R-squared:  0.007754 
F-statistic: 2.389 on 4 and 707 DF,  p-value: 0.04963