condition mean min max 4 h after light 3.271725 2.88815 3.6553 8 h after light 3.577045 3.45219 3.7019 12 h after light 4.32662 3.99809 4.65515 4 h after dark 5.408675000000001 5.22637 5.59098 8 h after dark 4.14923 3.78038 4.51808 12 h after dark 4.359450000000001 4.32863 4.39027