condition mean min max ZT0-3 101.69132543833334 96.43762003 106.94503084666667 ZT4-7 92.21391711166666 91.21799242 93.20984180333333 ZT8-11 113.58566219833332 111.28026788999999 115.89105650666667 ZT12-15 105.54877226833334 105.4826873 105.61485723666668 ZT16-19 103.167514375 101.17167378 105.16335497 ZT20-23 96.83650338500001 94.50840290333333 99.16460386666668