condition mean min max ZT0-3 107.5 107.5 107.5 ZT4-7 50.8 50.8 50.8 ZT8-11 97.30000000000001 97.30000000000001 97.30000000000001 ZT12-15 94.65 94.65 94.65 ZT16-19 62.55 62.55 62.55 ZT20-23 43.1 43.1 43.1