condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.0 0.0 0.0 ZT8-11 0.09677169125 0.0 0.1935433825 ZT12-15 1.82304783425 1.743146505 1.9029491635 ZT16-19 0.9245886617499999 0.7965126054999999 1.052664718 ZT20-23 0.43167900400000003 0.216552517 0.6468054910000001