condition mean min max ZT0-3 260.7895 260.7895 260.7895 ZT4-7 189.9 189.9 189.9 ZT8-11 112.16149999999999 112.16149999999999 112.16149999999999 ZT12-15 96.4386 96.4386 96.4386 ZT16-19 210.7135 210.7135 210.7135 ZT20-23 204.136 204.136 204.136