condition mean min max 0 h after light 4541.85 3906.28 5177.42 2 h after light 7804.705 7370.04 8239.37 4 h after light 7609.82 7367.93 7851.71 8 h after light 6970.2300000000005 4091.84 9848.62 12 h after light 4835.5650000000005 4522.39 5148.74 2 h after dark 5439.575000000001 4361.38 6517.77 4 h after dark 6551.139999999999 5666.09 7436.19 8 h after dark 3231.835 3125.24 3338.43 12 h after dark 3492.87 2920.91 4064.83