Call:
lm(formula = y ~ x)

Residuals:
      Min        1Q    Median        3Q       Max 
-0.057337 -0.021895 -0.004443  0.006690  0.258289 

Coefficients:
             Estimate Std. Error t value             Pr(>|t|)    
(Intercept)  0.042091   0.003542  11.883 < 0.0000000000000002 ***
xAmericas   -0.019960   0.004960  -4.025            0.0000632 ***
xAsia        0.015247   0.004895   3.115              0.00192 ** 
xEurope     -0.037644   0.004253  -8.851 < 0.0000000000000002 ***
xOceania    -0.020173   0.006223  -3.242              0.00124 ** 
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1

Residual standard error: 0.03896 on 707 degrees of freedom
Multiple R-squared:  0.2137,	Adjusted R-squared:  0.2092 
F-statistic: 48.03 on 4 and 707 DF,  p-value: < 0.00000000000000022