condition mean min max 0 h after light 23.4798 22.9893 23.9703 4 h after light 15.982850000000001 15.7756 16.1901 8 h after light 15.6776 12.7884 18.5668 4 h after dark 19.6297 15.6666 23.5928 8 h after dark 19.496650000000002 17.5588 21.4345 12 h after dark 16.21515 15.9303 16.5