condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0611551105 0.0 0.122310221 ZT12-15 0.31936665925 0.124961595 0.5137717235 ZT16-19 0.7298247765000001 0.6879960700000001 0.771653483 ZT20-23 0.6755243465 0.3744538305 0.9765948625