condition mean min max 4 h after light 67.44280549999999 56.6973 78.188311 8 h after light 58.4136515 53.125071 63.702232 12 h after light 48.5161785 37.159272 59.873085 4 h after dark 46.4385255 43.503205 49.373846 8 h after dark 41.151914500000004 32.929983 49.373846 12 h after dark 54.060856 54.060856 54.060856