condition mean min max ZT0-3 0.01817445975 0.0 0.0363489195 ZT4-7 0.0111685105 0.0 0.022337021 ZT8-11 0.0 0.0 0.0 ZT12-15 0.02085886066666667 0.0 0.04171772133333334 ZT16-19 0.008906312000000001 0.0 0.017812624000000003 ZT20-23 0.0 0.0 0.0