condition mean min max 4 h after light 2.10068 1.88253 2.31883 8 h after light 2.69456 2.05867 3.33045 12 h after light 53.647949999999994 51.602 55.6939 4 h after dark 64.21475 62.977 65.4525 8 h after dark 35.453050000000005 35.228 35.6781 12 h after dark 9.933465 7.82553 12.0414