condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.104646 0.104646 0.104646 ZT8-11 0.107433 0.107433 0.107433 ZT12-15 0.0803555 0.037311 0.1234 ZT16-19 0.10785700000000001 0.0 0.21571400000000002 ZT20-23 0 0 0