condition mean min max ZT0-3 152.25 152.25 152.25 ZT4-7 83.9 83.9 83.9 ZT8-11 72.25 72.25 72.25 ZT12-15 73.6 73.6 73.6 ZT16-19 50.85 50.85 50.85 ZT20-23 107.80000000000001 107.80000000000001 107.80000000000001