condition mean min max ZT0-3 95.192384 95.192384 95.192384 ZT4-7 69.4891755 69.4891755 69.4891755 ZT8-11 103.761263 103.761263 103.761263 ZT12-15 88.736202 88.736202 88.736202 ZT16-19 140.2870085 140.2870085 140.2870085 ZT20-23 101.69940299999999 101.69940299999999 101.69940299999999