condition mean min max 3 h after light 17.81745 9.9988 31.0639 7 h after light 17.6411 10.771 32.0938 11 h after light 19.207525 11.7398 24.9324 2 h after dark 20.760866666666665 15.2667 27.3898 6 h after dark 18.571316666666664 13.3425 28.0099 10 h after dark 17.312550833333333 8.95351 26.8558