condition mean min max 3 h after light 0.08246133333333333 0.0 0.138544 6 h after light 0.0 0.0 0.0 9 h after light 0.0 0.0 0.0 12 h after light 0.136931825 0.0914313 0.180732 3 h after dark 0.037357999999999995 0.0 0.112074 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