condition mean min max ZT0-3 123.68350000000001 105.5985 141.76850000000002 ZT4-7 47.38835 47.38835 47.38835 ZT8-11 69.4289 69.4289 69.4289 ZT12-15 0 0 0 ZT16-19 85.89935 85.89935 85.89935 ZT20-23 91.5994 91.5994 91.5994