condition mean min max ZT0-3 104.789224765 99.00718233 110.57126720000001 ZT4-7 59.794078285 56.73815692 62.84999965 ZT8-11 65.9224812 60.099089004999996 71.74587339499999 ZT12-15 48.339296534999995 39.520689239999996 57.157903829999995 ZT16-19 44.313716985 42.895456335000006 45.731977635 ZT20-23 55.035289675 53.042824705 57.027754645