condition mean min max 4 h after light 0.039747 0.0 0.079494 8 h after light 0.0753322 0.0644059 0.0862585 12 h after light 0.27531 0.0 0.55062 4 h after dark 0.277992 0.137505 0.418479 8 h after dark 1.23427 1.10252 1.36602 12 h after dark 0.523023 0.474876 0.57117