condition mean min max 0 h after light 0.1804315 0.0 0.360863 2 h after light 0.0839515 0.0 0.167903 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.168335 0.0 0.33667 2 h after dark 0.180079 0.172552 0.187606 4 h after dark 0.0 0.0 0.0 8 h after dark 0.090899 0.0 0.181798 12 h after dark 0.0 0.0 0.0