condition mean min max ZT0-3 0.0 0.0 0.0 ZT4-7 0.3109795 0.3109795 0.3109795 ZT8-11 0.6271085000000001 0.6271085000000001 0.6271085000000001 ZT12-15 0 0 0 ZT16-19 0.1036665 0.1036665 0.1036665 ZT20-23 0.2070945 0.2070945 0.2070945