condition mean min max ZT0-3 89.65748333333333 73.24914999999999 110.2 ZT4-7 96.6489 96.6489 96.6489 ZT8-11 115.3905 115.3905 115.3905 ZT12-15 118.38125000000001 116.85150000000002 119.911 ZT16-19 97.2303 97.2303 97.2303 ZT20-23 80.36125000000001 80.36125000000001 80.36125000000001