condition mean min max ZT0-3 1.26288754525 1.2431493305 1.28262576 ZT4-7 10.7493210235 7.302729982 14.195912065 ZT8-11 29.555967437499998 24.97500754 34.136927334999996 ZT12-15 110.2518485 94.12056605 126.38313095000001 ZT16-19 100.059814875 80.31723878 119.80239097 ZT20-23 192.292981 163.71573815 220.87022385