condition mean min max ZT0-3 235.957 235.957 235.957 ZT4-7 304.07349999999997 304.07349999999997 304.07349999999997 ZT8-11 250.405 250.405 250.405 ZT12-15 196.893 196.893 196.893 ZT16-19 147.008 147.008 147.008 ZT20-23 186.3585 186.3585 186.3585