condition mean min max ZT0-3 0.22151916666666663 0.0 0.6645574999999999 ZT4-7 0.63273 0.63273 0.63273 ZT8-11 0.6577605 0.6577605 0.6577605 ZT12-15 0.1189695 0.0 0.237939 ZT16-19 0.2120375 0.2120375 0.2120375 ZT20-23 0.0 0.0 0.0