condition mean min max ZT0-3 15.0425 15.0425 15.0425 ZT4-7 11.575700000000001 11.575700000000001 11.575700000000001 ZT8-11 7.47309 7.47309 7.47309 ZT12-15 11.6217 11.6217 11.6217 ZT16-19 12.142949999999999 12.142949999999999 12.142949999999999 ZT20-23 12.2837 12.2837 12.2837