condition mean min max ZT0-3 13.4995 12.49765 14.501349999999999 ZT4-7 14.156400000000001 14.156400000000001 14.156400000000001 ZT8-11 12.62325 12.62325 12.62325 ZT12-15 0 0 0 ZT16-19 14.0677 14.0677 14.0677 ZT20-23 14.624400000000001 14.624400000000001 14.624400000000001