condition mean min max ZT0-3 0.06951212500000001 0.04562225 0.093402 ZT4-7 0.7474935 0.7474935 0.7474935 ZT8-11 0.9862949999999999 0.9862949999999999 0.9862949999999999 ZT12-15 0 0 0 ZT16-19 0.1840087 0.1840087 0.1840087 ZT20-23 0.0927645 0.0927645 0.0927645