condition mean min max ZT0-3 116.2925 111.2295 121.3555 ZT4-7 196.284 196.284 196.284 ZT8-11 86.6798 86.6798 86.6798 ZT12-15 0 0 0 ZT16-19 126.5735 126.5735 126.5735 ZT20-23 149.4435 149.4435 149.4435