condition mean min max ZT0-3 10.141265 10.141265 10.141265 ZT4-7 9.732133000000001 9.732133000000001 9.732133000000001 ZT8-11 10.306097 10.306097 10.306097 ZT12-15 10.725031 10.725031 10.725031 ZT16-19 10.3347285 10.3347285 10.3347285 ZT20-23 10.8895365 10.8895365 10.8895365