condition mean min max 4 h after light 171.9661815 143.119154 200.813209 8 h after light 158.869924 157.676921 160.062927 12 h after light 141.2275975 137.992369 144.462826 4 h after dark 171.6152995 141.462826 201.767773 8 h after dark 181.136292 126.514976 235.757608 12 h after dark 148.114205 148.114205 148.114205