Call:
lm(formula = y ~ x)

Residuals:
      Min        1Q    Median        3Q       Max 
-0.029783 -0.011091 -0.006597  0.004891  0.264255 

Coefficients:
             Estimate Std. Error t value             Pr(>|t|)    
(Intercept)  0.029786   0.002129  13.989 < 0.0000000000000002 ***
xAmericas   -0.015168   0.002981  -5.088        0.00000046431 ***
xAsia       -0.011925   0.002942  -4.053        0.00005618921 ***
xEurope     -0.023129   0.002556  -9.048 < 0.0000000000000002 ***
xOceania    -0.022295   0.003740  -5.961        0.00000000397 ***
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

Residual standard error: 0.02342 on 707 degrees of freedom
Multiple R-squared:  0.113,	Adjusted R-squared:  0.108 
F-statistic: 22.51 on 4 and 707 DF,  p-value: < 0.00000000000000022