condition mean min max 4 h after light 135.37310100000002 126.439707 144.306495 8 h after light 121.5107495 105.442496 137.579003 12 h after light 145.0301695 144.306495 145.753844 4 h after dark 151.2216065 144.306495 158.136718 8 h after dark 170.64283949999998 162.225182 179.060497 12 h after dark 122.693595 122.693595 122.693595