condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.0 0.0 0.0 ZT8-11 0.0202622355 0.0 0.040524471 ZT12-15 0.085667875 0.062104407 0.10923134300000001 ZT16-19 0.33667260475000005 0.2890381005 0.38430710900000004 ZT20-23 0.35381348749999997 0.225222745 0.48240423