condition mean min max 2 h after light 0.0 0.0 0.0 6 h after light 0.0 0.0 0.0 10 h after light 0.3223775 0.0 0.812641 14 h after light 0.27295933333333333 0.0 0.587007 18 h after light 0.183237 0.0 0.640399 2 h after dark 0.0 0.0 0.0