condition mean min max ZT0-3 3305.6 3305.6 3305.6 ZT4-7 3920.2 3920.2 3920.2 ZT8-11 3542.5 3542.5 3542.5 ZT12-15 4516.1 4516.1 4516.1 ZT16-19 3734.2 3734.2 3734.2 ZT20-23 3577.5499999999997 3577.5499999999997 3577.5499999999997