condition mean min max ZT0-3 858.1500000000001 858.1500000000001 858.1500000000001 ZT4-7 1024.5 1024.5 1024.5 ZT8-11 1218.35 1218.35 1218.35 ZT12-15 1253.0 1253.0 1253.0 ZT16-19 1055.25 1055.25 1055.25 ZT20-23 892.1 892.1 892.1