condition mean min max ZT0-3 3384.45 3384.45 3384.45 ZT4-7 1540.7 1540.7 1540.7 ZT8-11 2018.45 2018.45 2018.45 ZT12-15 2304.7 2304.7 2304.7 ZT16-19 2920.5 2920.5 2920.5 ZT20-23 3685.8500000000004 3685.8500000000004 3685.8500000000004