condition mean min max 0 h after light 9.709365 8.11353 11.3052 2 h after light 10.23521 5.66262 14.8078 4 h after light 9.89907 8.31124 11.4869 8 h after light 12.631545 8.72319 16.5399 12 h after light 13.41965 10.7539 16.0854 2 h after dark 15.1831 14.5485 15.8177 4 h after dark 11.0027 7.5178 14.4876 8 h after dark 10.994055 7.15311 14.835 12 h after dark 6.943239999999999 4.83575 9.05073