condition mean min max 4 h after light 0.0 0.0 0.0 8 h after light 0.0809817 0.0 0.213199 12 h after light 0.0 0.0 0.0 4 h after dark 0.0322609 0.0 0.062754 8 h after dark 0.1175476 0.0 0.297753 12 h after dark 0.05692423333333333 0.0 0.138958