condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.1314457 0.1314457 0.1314457 ZT8-11 0.0 0.0 0.0 ZT12-15 0.0200727 0.0200727 0.0200727 ZT16-19 0.024177900000000002 0.024177900000000002 0.024177900000000002 ZT20-23 0.0 0.0 0.0