sex	length
M	19
M	18.6
M	18.3
M	18
M	18.2
M	18.6
M	18.5
M	18.2
M	18.4
M	18.9
M	19.9
M	18.5
M	16.9
M	18
M	17.3
M	17.8
M	20
M	19
M	19.2
M	18.9
M	17.5
M	18.1
M	18
M	18.1
M	17.4
M	17.9
M	17.4
M	16.7
M	19.7
M	19.3
M	19
M	19.4
M	19.8
M	19.3
M	18.5
F	18.3
F	17.9
F	17.6
F	17.3
F	17.5
F	17.9
F	17.8
F	17
F	17.7
F	18.2
F	19.2
F	17.8
F	16.2
F	17.3
F	16.6
F	17.1
F	19.3
F	18.3
F	18.5
F	18
F	16.8
F	17.2
F	17.3
F	17.4
F	16.7
F	17.2
F	16.7
F	16.2
F	19
F	18.6
F	18.3
F	18.7
F	19.1
F	18.6
F	17.8