condition mean min max ZT0-3 780.55 780.55 780.55 ZT4-7 1026.0 1026.0 1026.0 ZT8-11 931.8 931.8 931.8 ZT12-15 911.0 911.0 911.0 ZT16-19 1093.0500000000002 1093.0500000000002 1093.0500000000002 ZT20-23 809.55 809.55 809.55