> summary(gold)
   Min. 1st Qu.  Median    Mean 3rd Qu.    Max. 
  0.000   0.000   9.441  24.080  51.960  66.110 
> summary(silver)
   Min. 1st Qu.  Median    Mean 3rd Qu.    Max. 
  0.000   0.000   0.000   9.236   9.236  36.940 
> summary(bronze)
   Min. 1st Qu.  Median    Mean 3rd Qu.    Max. 
   0.00    0.00    0.00    6.42    0.00   81.36 