condition mean min max ZT0-3 224.852 222.8655 226.8385 ZT4-7 223.45850000000002 223.45850000000002 223.45850000000002 ZT8-11 143.7295 143.7295 143.7295 ZT12-15 0 0 0 ZT16-19 100.80395 100.80395 100.80395 ZT20-23 191.20499999999998 191.20499999999998 191.20499999999998