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 0.0 0.0 0.0 12 h after light 0.028688466666666666 0.0 0.0860654 3 h after dark 0.023194633333333336 0.0 0.0695839 6 h after dark 0.0 0.0 0.0 9 h after dark 0.07445866666666666 0.0 0.223376 12 h after dark 0.0 0.0 0.0