condition mean min max 4 h after light 0.1257115 0.0 0.251423 8 h after light 0.0341022 0.0 0.0682044 12 h after light 0.0 0.0 0.0 4 h after dark 0.02718125 0.0 0.0543625 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0