condition mean min max 3 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 9 h after light 0.031148 0.0 0.093444 12 h after light 0.0 0.0 0.0 3 h after dark 0.0 0.0 0.0 6 h after dark 0.057293333333333335 0.0 0.17188 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0