condition mean min max ZT0-3 112.35050000000001 112.35050000000001 112.35050000000001 ZT4-7 153.1505 153.1505 153.1505 ZT8-11 111.227 111.227 111.227 ZT12-15 91.15925 91.15925 91.15925 ZT16-19 63.466499999999996 63.466499999999996 63.466499999999996 ZT20-23 91.87870000000001 91.87870000000001 91.87870000000001