condition mean min max 0 h after light 7.23986 3.85862 10.6211 2 h after light 4.274095 4.20013 4.34806 4 h after light 8.164655 7.03948 9.28983 8 h after light 8.621110000000002 8.56511 8.67711 12 h after light 8.418635 7.0414 9.79587 2 h after dark 8.26175 7.34421 9.17929 4 h after dark 14.10245 12.6962 15.5087 8 h after dark 10.54625 10.5296 10.5629 12 h after dark 12.17339 9.70798 14.6388