condition mean min max ZT0-3 245.644 237.645 253.643 ZT4-7 260.46299999999997 260.46299999999997 260.46299999999997 ZT8-11 318.419 318.419 318.419 ZT12-15 0 0 0 ZT16-19 393.55899999999997 393.55899999999997 393.55899999999997 ZT20-23 281.87300000000005 281.87300000000005 281.87300000000005