condition mean min max 4 h after light 5.33764 5.26399 5.4362900000000005 8 h after light 5.2994699999999995 5.08725 5.43159 12 h after light 5.185393333333334 5.121180000000001 5.25129 4 h after dark 5.481109999999999 5.2288 5.6725699999999994 8 h after dark 5.276853333333333 5.04619 5.5298300000000005 12 h after dark 5.442253333333333 5.38167 5.55666