condition mean min max 0 h after light 0.0 0.0 0.0 2 h after light 0.0 0.0 0.0 4 h after light 0.060038 0.0 0.120076 8 h after light 0.244089 0.0 0.488178 12 h after light 0.104665 0.0 0.20933 2 h after dark 0.1562115 0.0 0.312423 4 h after dark 0.0 0.0 0.0 8 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0