condition mean min max ZT0-3 0.5646249999999999 0.3799575 0.7492924999999999 ZT4-7 1.52082 1.52082 1.52082 ZT8-11 0.0 0.0 0.0 ZT12-15 0 0 0 ZT16-19 0.373974 0.373974 0.373974 ZT20-23 0.74709 0.74709 0.74709