condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.037187 0.0 0.111561 9 h after light 0.0 0.0 0.0 12 h after light 0.13015195 0.0 0.307037 3 h after dark 0.08462266666666667 0.0 0.126937 6 h after dark 0.0 0.0 0.0 9 h after dark 0.05469733333333333 0.0 0.164092 12 h after dark 0.3982275 0.293635 0.50282