condition mean min max 4 h after light 3.6480550000000003 3.15333 4.14278 8 h after light 2.4306200000000002 2.09996 2.76128 12 h after light 3.03199 3.02825 3.03573 4 h after dark 4.261596666666667 3.37244 5.11587 8 h after dark 4.126366666666667 3.99403 4.23499 12 h after dark 3.69114 3.5037 4.00243