condition mean min max ZT0-3 3.61157 3.4711 3.75204 ZT4-7 1.544825 1.544825 1.544825 ZT8-11 1.27057 1.27057 1.27057 ZT12-15 0 0 0 ZT16-19 1.8903 1.8903 1.8903 ZT20-23 3.2889850000000003 3.2889850000000003 3.2889850000000003