condition mean min max ZT0-3 89.20485 89.20485 89.20485 ZT4-7 43.7579 43.7579 43.7579 ZT8-11 40.22005 40.22005 40.22005 ZT12-15 55.238600000000005 55.238600000000005 55.238600000000005 ZT16-19 93.62209999999999 93.62209999999999 93.62209999999999 ZT20-23 100.6105 100.6105 100.6105