condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 0.0 0.0 0.0 4 h after light 0.2159895 0.0 0.431979 8 h after light 13.795455 9.22031 18.3706 12 h after light 1.7662875 0.970595 2.56198 2 h after dark 0.0 0.0 0.0 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0