condition mean min max 4 h after light 4.736676666666667 3.54308 5.40201 8 h after light 7.22671 2.61955 9.70289 12 h after light 6.187286666666667 4.3559 7.89306 4 h after dark 13.8296 10.6022 15.9001 8 h after dark 8.383076666666668 6.66424 9.37408 12 h after dark 4.4102500000000004 4.051 4.98779