condition mean min max ZT0-3 0.30868450000000003 0.308202 0.309167 ZT4-7 0.9331940000000001 0.9331940000000001 0.9331940000000001 ZT8-11 0.3053285 0.3053285 0.3053285 ZT12-15 0 0 0 ZT16-19 0.4564475 0.4564475 0.4564475 ZT20-23 0.1519745 0.1519745 0.1519745