condition mean min max ZT0-3 32.24235 23.817149999999998 40.667550000000006 ZT4-7 120.37145000000001 120.37145000000001 120.37145000000001 ZT8-11 92.43275 92.43275 92.43275 ZT12-15 0 0 0 ZT16-19 44.965050000000005 44.965050000000005 44.965050000000005 ZT20-23 51.6731 51.6731 51.6731