condition mean min max ZT0-3 13.1131 13.1131 13.1131 ZT4-7 14.869299999999999 14.869299999999999 14.869299999999999 ZT8-11 96.17599999999999 96.17599999999999 96.17599999999999 ZT12-15 50.57715 50.57715 50.57715 ZT16-19 29.395933333333332 29.395933333333332 29.395933333333332 ZT20-23 14.0158 14.0158 14.0158