condition mean min max ZT0-3 4088.25 4088.25 4088.25 ZT4-7 3698.4 3698.4 3698.4 ZT8-11 2348.55 2348.55 2348.55 ZT12-15 717.0 717.0 717.0 ZT16-19 192.14999999999998 192.14999999999998 192.14999999999998 ZT20-23 675.0 675.0 675.0