condition mean min max ZT0-3 80.6 80.6 80.6 ZT4-7 125.7 125.7 125.7 ZT8-11 98.19999999999999 98.19999999999999 98.19999999999999 ZT12-15 79.55000000000001 79.55000000000001 79.55000000000001 ZT16-19 96.0 96.0 96.0 ZT20-23 91.4 91.4 91.4