> summary(gold)
   Min. 1st Qu.  Median    Mean 3rd Qu.    Max. 
 0.2184  7.0530 12.6300 11.0400 14.3000 18.0300 
> summary(silver)
   Min. 1st Qu.  Median    Mean 3rd Qu.    Max. 
  2.421   3.282   6.066  10.170  12.960  26.140 
> summary(bronze)
   Min. 1st Qu.  Median    Mean 3rd Qu.    Max. 
  0.000   1.340   4.987   8.115  10.360  41.610 