condition mean min max 2 h after light 138.02133333333333 131.408 145.819 6 h after light 162.56033333333332 146.694 170.554 10 h after light 114.146 111.319 119.412 2 h after dark 232.442 219.427 243.124 6 h after dark 349.989 336.334 359.954 10 h after dark 491.5373333333333 483.067 506.615