condition mean min max ZT0-3 105.19999999999999 105.19999999999999 105.19999999999999 ZT4-7 74.6 74.6 74.6 ZT8-11 117.35 117.35 117.35 ZT12-15 122.85000000000001 122.85000000000001 122.85000000000001 ZT16-19 135.1 135.1 135.1 ZT20-23 103.75 103.75 103.75