condition mean min max ZT0-3 114.648 114.648 114.648 ZT4-7 80.08744999999999 80.08744999999999 80.08744999999999 ZT8-11 65.233 65.233 65.233 ZT12-15 75.29660000000001 75.29660000000001 75.29660000000001 ZT16-19 129.823 129.823 129.823 ZT20-23 126.3595 126.3595 126.3595