condition mean min max ZT0-3 297.15766666666667 160.88549999999998 390.5395 ZT4-7 108.0895 108.0895 108.0895 ZT8-11 39.285 39.285 39.285 ZT12-15 59.609175 53.2572 65.96115 ZT16-19 45.5259 45.5259 45.5259 ZT20-23 114.92099999999999 114.92099999999999 114.92099999999999