condition mean min max ZT0-3 6038.1 6038.1 6038.1 ZT4-7 5248.9 5248.9 5248.9 ZT8-11 5525.8 5525.8 5525.8 ZT12-15 6203.049999999999 6203.049999999999 6203.049999999999 ZT16-19 6119.65 6119.65 6119.65 ZT20-23 6020.65 6020.65 6020.65