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 0.022754766666666666 0.0 0.0682643 12 h after light 0.0 0.0 0.0 3 h after dark 0.047263 0.0 0.141789 6 h after dark 0.07464366666666666 0.0 0.122491 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0