condition mean min max ZT0-3 45.074149999999996 43.233149999999995 46.91515 ZT4-7 58.372 58.372 58.372 ZT8-11 82.90015 82.90015 82.90015 ZT12-15 0 0 0 ZT16-19 97.0547 97.0547 97.0547 ZT20-23 72.7108 72.7108 72.7108