condition mean min max ZT0-3 137.28575 124.90350000000001 149.668 ZT4-7 131.976 131.976 131.976 ZT8-11 146.76 146.76 146.76 ZT12-15 0 0 0 ZT16-19 191.152 191.152 191.152 ZT20-23 159.67000000000002 159.67000000000002 159.67000000000002