condition mean min max 0 h after light 11.96775 10.0127 13.9228 2 h after light 16.1176 15.5739 16.6613 4 h after light 14.5574 12.3707 16.7441 8 h after light 16.73965 14.7017 18.7776 12 h after light 28.82995 28.4923 29.1676 2 h after dark 19.51035 18.4152 20.6055 4 h after dark 19.8471 16.39 23.3042 8 h after dark 22.73925 21.6641 23.8144 12 h after dark 10.709385000000001 9.96197 11.4568