condition mean min max 2 h after light 0.893508 0.317279 1.75692 6 h after light 0.49639633333333333 0.0 2.13006 10 h after light 0.8078561666666667 0.0 2.4563 14 h after light 1.4463625 0.157986 4.16482 18 h after light 1.0293305 0.135816 3.14789 2 h after dark 1.1967459999999999 0.0 3.8777