condition mean min max 4 h after light 11.68276 11.48271 11.8475 8 h after light 10.27049 9.970189999999999 10.42533 12 h after light 9.236476666666666 9.106819999999999 9.36086 4 h after dark 8.071113333333333 7.69537 8.68533 8 h after dark 10.54204 10.2051 10.75676 12 h after dark 11.775566666666666 11.519730000000001 11.925930000000001