condition mean min max ZT0-3 107.3 107.3 107.3 ZT4-7 41.0 41.0 41.0 ZT8-11 101.30000000000001 101.30000000000001 101.30000000000001 ZT12-15 90.85 90.85 90.85 ZT16-19 63.199999999999996 63.199999999999996 63.199999999999996 ZT20-23 70.6 70.6 70.6