condition mean min max ZT0-3 234.8 234.8 234.8 ZT4-7 229.8 229.8 229.8 ZT8-11 193.55 193.55 193.55 ZT12-15 156.1 156.1 156.1 ZT16-19 188.3 188.3 188.3 ZT20-23 196.2 196.2 196.2