condition mean min max ZT0-3 21.96997 19.64329 24.29665 ZT4-7 0.0 0.0 0.0 ZT8-11 4.99669 4.99669 4.99669 ZT12-15 0 0 0 ZT16-19 4.839955 4.839955 4.839955 ZT20-23 14.584644999999998 14.584644999999998 14.584644999999998