condition mean min max ZT0-3 51.4293 51.4293 51.4293 ZT4-7 25.303350000000002 25.303350000000002 25.303350000000002 ZT8-11 21.8369 21.8369 21.8369 ZT12-15 24.0416 24.0416 24.0416 ZT16-19 43.37675 43.37675 43.37675 ZT20-23 60.3151 60.3151 60.3151