condition mean min max ZT0-3 93.49090000000001 93.49090000000001 93.49090000000001 ZT4-7 85.8456 85.8456 85.8456 ZT8-11 68.03905 68.03905 68.03905 ZT12-15 76.29419999999999 76.29419999999999 76.29419999999999 ZT16-19 64.88040000000001 64.88040000000001 64.88040000000001 ZT20-23 100.00375 100.00375 100.00375