condition mean min max ZT0-3 1.58179 1.58179 1.58179 ZT4-7 2.9995450000000003 2.9995450000000003 2.9995450000000003 ZT8-11 1.101671 1.101671 1.101671 ZT12-15 0.4704165 0.4704165 0.4704165 ZT16-19 0.43862350000000006 0.43862350000000006 0.43862350000000006 ZT20-23 0.660147 0.660147 0.660147