condition mean min max ZT0-3 208.159 204.2275 212.0905 ZT4-7 91.93885 91.93885 91.93885 ZT8-11 120.7595 120.7595 120.7595 ZT12-15 0 0 0 ZT16-19 194.3305 194.3305 194.3305 ZT20-23 120.9285 120.9285 120.9285