condition mean min max 3 h after light 0.22347933333333334 0.0 0.670438 6 h after light 0.0 0.0 0.0 9 h after light 0.174082 0.0 0.522246 12 h after light 0.0 0.0 0.0 3 h after dark 0.0 0.0 0.0 6 h after dark 0.0 0.0 0.0 9 h after dark 0.0 0.0 0.0 12 h after dark 0.0 0.0 0.0