condition mean min max ZT0-3 147.56025 145.714 149.4065 ZT4-7 190.87 190.87 190.87 ZT8-11 278.91949999999997 278.91949999999997 278.91949999999997 ZT12-15 0 0 0 ZT16-19 169.8875 169.8875 169.8875 ZT20-23 190.9995 190.9995 190.9995