condition mean min max ZT0-3 0.11516343574999999 0.07884393599999999 0.1514829355 ZT4-7 0.18603844825 0.179280084 0.19279681249999997 ZT8-11 0.131833512 0.128299978 0.13536704600000002 ZT12-15 0.10875246300000001 0.0808695455 0.13663538050000001 ZT16-19 0.33850762625 0.23622191550000002 0.440793337 ZT20-23 0.8983435945 0.8543284794999999 0.9423587095