length age1 age2 age3 age4 age5
 19.75    4    0    0    0    0
 21.75   10    0    0    0    0
 23.75   21    0    0    0    0
 25.75    9    2    0    0    0
 27.75    8    6    0    0    0
 29.75    3   28    0    0    0
 31.75    0   38    1    0    0
 33.75    0   68    2    0    0
 35.75    0   63    8    0    0
 37.75    0   23   21    0    0
 39.75    0   13   29    0    0
 41.75    0    2   34    0    0
 43.75    0    0   23    0    0
 45.75    0    0   16    6    0
 47.75    0    0    7   10    0
 49.75    0    0    6    5    1
 51.75    0    0    5    7    0
 53.75    0    0    4    4    3
 55.75    0    0    0    8    0
 57.75    0    0    0    2    1
 59.75    0    0    0    1    5
 61.75    0    0    0    2    4
 63.75    0    0    0    1    2
 65.75    0    0    0    1    1
   Inf    0    0    0    0    5
