condition mean min max ZT0-3 1.03098475 0.958941 1.1030285 ZT4-7 5.29862 5.29862 5.29862 ZT8-11 105.154 105.154 105.154 ZT12-15 0 0 0 ZT16-19 14.46705 14.46705 14.46705 ZT20-23 4.89936 4.89936 4.89936