condition mean min max ZT0-3 43.0106 40.262699999999995 45.7585 ZT4-7 41.164 41.164 41.164 ZT8-11 43.461 43.461 43.461 ZT12-15 0 0 0 ZT16-19 48.4813 48.4813 48.4813 ZT20-23 45.74125 45.74125 45.74125