Call:
lm(formula = y ~ x)

Residuals:
     Min       1Q   Median       3Q      Max 
-0.02271 -0.01971 -0.01152  0.00533  0.41230 

Coefficients:
              Estimate Std. Error t value      Pr(>|t|)    
(Intercept)  0.0197085  0.0033673   5.853 0.00000000739 ***
xAmericas   -0.0055425  0.0047145  -1.176        0.2401    
xAsia        0.0005245  0.0046534   0.113        0.9103    
xEurope      0.0030046  0.0040430   0.743        0.4576    
xOceania    -0.0136103  0.0059155  -2.301        0.0217 *  
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

Residual standard error: 0.03704 on 707 degrees of freedom
Multiple R-squared:  0.01685,	Adjusted R-squared:  0.01129 
F-statistic:  3.03 on 4 and 707 DF,  p-value: 0.0171