condition mean min max ZT0-3 106.808251 106.808251 106.808251 ZT4-7 110.21427750000001 110.21427750000001 110.21427750000001 ZT8-11 102.42361600000001 102.42361600000001 102.42361600000001 ZT12-15 111.07997850000001 111.07997850000001 111.07997850000001 ZT16-19 103.07171 103.07171 103.07171 ZT20-23 108.634237 108.634237 108.634237