condition mean min max 4 h after light 2.5851499999999996 2.49794 2.67236 8 h after light 2.00714 1.84913 2.16515 12 h after light 1.9990100000000002 1.4563 2.54172 4 h after dark 3.337475 2.99032 3.68463 8 h after dark 2.590025 2.51792 2.66213 12 h after dark 3.1430800000000003 2.97466 3.3115