condition mean min max ZT0-3 0.2911785 0.194524 0.387833 ZT4-7 0.98926 0.98926 0.98926 ZT8-11 0.3953215 0.3953215 0.3953215 ZT12-15 0 0 0 ZT16-19 0.1914605 0.1914605 0.1914605 ZT20-23 0.0 0.0 0.0