condition mean min max 0 h after light 0.0305271 0.0 0.0610542 2 h after light 0.03427295 0.0 0.0685459 4 h after light 0.0 0.0 0.0 8 h after light 0.0 0.0 0.0 12 h after light 0.03066 0.0 0.06132 2 h after dark 0.062856 0.0 0.125712 4 h after dark 0.0293405 0.0 0.058681 8 h after dark 0.0 0.0 0.0 12 h after dark 0.03258605 0.0 0.0651721