condition mean min max ZT0-3 85.539962 85.539962 85.539962 ZT4-7 113.908224 113.908224 113.908224 ZT8-11 110.27051900000001 110.27051900000001 110.27051900000001 ZT12-15 98.842321 98.842321 98.842321 ZT16-19 100.53126 100.53126 100.53126 ZT20-23 85.234607 85.234607 85.234607