condition mean min max ZT0-3 40.470482772500006 39.409729845 41.5312357 ZT4-7 30.2250953725 26.367136594999998 34.08305415 ZT8-11 11.628447008750001 9.823653152 13.4332408655 ZT12-15 35.852518141000004 29.193482967 42.511553315 ZT16-19 43.6266135675 43.313442789999996 43.939784345 ZT20-23 33.33746462 30.592315565 36.082613675