condition mean min max ZT0-3 96.0 96.0 96.0 ZT4-7 85.8 85.8 85.8 ZT8-11 142.39999999999998 142.39999999999998 142.39999999999998 ZT12-15 75.80000000000001 75.80000000000001 75.80000000000001 ZT16-19 83.45 83.45 83.45 ZT20-23 116.85 116.85 116.85