condition mean min max ZT0-3 2710.5 2710.5 2710.5 ZT4-7 3894.2 3894.2 3894.2 ZT8-11 3112.15 3112.15 3112.15 ZT12-15 2016.3000000000002 2016.3000000000002 2016.3000000000002 ZT16-19 1408.15 1408.15 1408.15 ZT20-23 1570.1 1570.1 1570.1