condition mean min max ZT0-3 118.80000000000001 118.80000000000001 118.80000000000001 ZT4-7 361.9 361.9 361.9 ZT8-11 397.0 397.0 397.0 ZT12-15 334.6 334.6 334.6 ZT16-19 245.75 245.75 245.75 ZT20-23 220.39999999999998 220.39999999999998 220.39999999999998