condition mean min max 0 h after light 33.4931 31.4581 35.5281 2 h after light 35.5617 35.3243 35.7991 4 h after light 17.26985 15.4974 19.0423 8 h after light 9.249895 7.67589 10.8239 12 h after light 7.6277 6.69154 8.56386 2 h after dark 4.85499 4.77212 4.93786 4 h after dark 5.355055 4.95133 5.75878 8 h after dark 9.168164999999998 8.9912 9.34513 12 h after dark 32.77675 32.3697 33.1838