condition mean min max ZT0-3 0.031032133333333333 0.031032133333333333 0.031032133333333333 ZT4-7 0.027012300000000003 0.027012300000000003 0.027012300000000003 ZT8-11 0.0099114 0.0099114 0.0099114 ZT12-15 0.0 0.0 0.0 ZT16-19 0.0091282 0.0091282 0.0091282 ZT20-23 0.0 0.0 0.0