condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.07358185 0.0566421 0.0905216 12 h after light 0.0293308 0.0 0.0586616 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