condition mean min max ZT0-3 380.80899999999997 380.80899999999997 380.80899999999997 ZT4-7 336.623 336.623 336.623 ZT8-11 306.8835 306.8835 306.8835 ZT12-15 262.4925 262.4925 262.4925 ZT16-19 448.1975 448.1975 448.1975 ZT20-23 375.3445 375.3445 375.3445