condition mean min max ZT0-3 53.772963 53.772963 53.772963 ZT4-7 37.2280035 37.2280035 37.2280035 ZT8-11 43.841485 43.841485 43.841485 ZT12-15 46.8228895 46.8228895 46.8228895 ZT16-19 44.2741955 44.2741955 44.2741955 ZT20-23 56.339113999999995 56.339113999999995 56.339113999999995