condition mean min max ZT0-3 7138.4 7138.4 7138.4 ZT4-7 8193.0 8193.0 8193.0 ZT8-11 9044.6 9044.6 9044.6 ZT12-15 8261.400000000001 8261.400000000001 8261.400000000001 ZT16-19 8102.2 8102.2 8102.2 ZT20-23 8038.65 8038.65 8038.65