condition mean min max ZT0-3 848.91075 784.8495 912.972 ZT4-7 1005.6815 1005.6815 1005.6815 ZT8-11 720.4465 720.4465 720.4465 ZT12-15 0 0 0 ZT16-19 624.0255 624.0255 624.0255 ZT20-23 860.7460000000001 860.7460000000001 860.7460000000001