condition mean min max ZT0-3 196.85 196.85 196.85 ZT4-7 265.0 265.0 265.0 ZT8-11 206.7 206.7 206.7 ZT12-15 236.35 236.35 236.35 ZT16-19 219.45 219.45 219.45 ZT20-23 192.35 192.35 192.35