condition mean min max 4 h after light 4.05806 3.77009 4.34603 8 h after light 4.934225 4.91353 4.95492 12 h after light 5.28724 5.08949 5.48499 4 h after dark 5.550025 5.00045 6.0996 8 h after dark 4.35867 3.98005 4.73729 12 h after dark 4.217505 4.15304 4.28197