condition mean min max ZT0-3 10.471240000000002 10.471240000000002 10.471240000000002 ZT4-7 10.1147 10.1147 10.1147 ZT8-11 5.867240000000001 5.867240000000001 5.867240000000001 ZT12-15 5.87293 5.87293 5.87293 ZT16-19 9.083995 9.083995 9.083995 ZT20-23 9.669965000000001 9.669965000000001 9.669965000000001