condition mean min max ZT0-3 9002.078211 9002.078211 9002.078211 ZT4-7 9894.140024 9894.140024 9894.140024 ZT8-11 10051.503918999999 10051.503918999999 10051.503918999999 ZT12-15 9006.1082385 9006.1082385 9006.1082385 ZT16-19 5955.8753209999995 5955.8753209999995 5955.8753209999995 ZT20-23 5375.006784499999 5375.006784499999 5375.006784499999