condition mean min max 4 h after light 1.1721513333333333 0.387627 2.25651 8 h after light 1.67683 0.2961 2.66964 12 h after light 1.5359766666666665 0.59861 2.27347 4 h after dark 1.310797 0.767471 1.58393 8 h after dark 2.6103970000000003 0.978971 4.78016 12 h after dark 2.87417 2.16602 4.12997