condition mean min max ZT0-3 0.009080575 0.0 0.01816115 ZT4-7 0.055600800000000006 0.055600800000000006 0.055600800000000006 ZT8-11 0.0551775 0.0551775 0.0551775 ZT12-15 0 0 0 ZT16-19 0.0547745 0.0547745 0.0547745 ZT20-23 0.0550823 0.0550823 0.0550823