condition mean min max ZT0-3 19.315549999999998 17.5201 21.110999999999997 ZT4-7 189.85750000000002 189.85750000000002 189.85750000000002 ZT8-11 594.7345 594.7345 594.7345 ZT12-15 0 0 0 ZT16-19 110.46815000000001 110.46815000000001 110.46815000000001 ZT20-23 32.5967 32.5967 32.5967