condition mean min max ZT0-3 1475.7525 1467.155 1484.35 ZT4-7 1510.79 1510.79 1510.79 ZT8-11 1244.25 1244.25 1244.25 ZT12-15 0 0 0 ZT16-19 1904.645 1904.645 1904.645 ZT20-23 1886.47 1886.47 1886.47