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 0.55127 0.0 1.65381 12 h after light 0.7961765 0.0 1.51986 3 h after dark 0.0 0.0 0.0 6 h after dark 0.5991536666666667 0.362177 0.83542 9 h after dark 0.385968 0.0 0.615957 12 h after dark 0.7843815000000001 0.323263 1.2455