condition mean min max ZT0-3 0.6335197404999999 0.0 1.2670394809999999 ZT4-7 0.7455050405000001 0.133982331 1.35702775 ZT8-11 0.29141064024999996 0.290315074 0.2925062065 ZT12-15 1.52536578 1.4327036764999999 1.6180278835 ZT16-19 0.94090198775 0.70559301 1.1762109655000001 ZT20-23 0.6304340185 0.23696787100000002 1.023900166