condition mean min max ZT0-3 48.25 48.25 48.25 ZT4-7 95.0 95.0 95.0 ZT8-11 54.449999999999996 54.449999999999996 54.449999999999996 ZT12-15 89.9 89.9 89.9 ZT16-19 150.75 150.75 150.75 ZT20-23 120.60000000000001 120.60000000000001 120.60000000000001