condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0 0.0 0.0 ZT12-15 0.0644895 0.0644895 0.0644895 ZT16-19 0.020115499999999998 0.020115499999999998 0.020115499999999998 ZT20-23 0.0 0.0 0.0