condition mean min max ZT0-3 0.16988499999999998 0.0 0.509655 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0 0.0 0.0 ZT12-15 0.28755225 0.0 0.5751045 ZT16-19 0.6552795 0.6552795 0.6552795 ZT20-23 0.0 0.0 0.0