condition mean min max 4 h after light 5.34382 5.19652 5.46391 8 h after light 5.2810500000000005 5.09698 5.44013 12 h after light 5.13774 5.04091 5.2489099999999995 4 h after dark 5.268543333333333 5.1854 5.36252 8 h after dark 5.158236666666666 4.91542 5.3230699999999995 12 h after dark 5.464283333333333 5.2859300000000005 5.62335