condition mean min max ZT0-3 0.070525725 0.0352116 0.10583985 ZT4-7 0.07068964999999999 0.07068964999999999 0.07068964999999999 ZT8-11 0.10465 0.10465 0.10465 ZT12-15 0 0 0 ZT16-19 0.0346288 0.0346288 0.0346288 ZT20-23 0.0 0.0 0.0