condition mean min max 4 h after light 7073.8144446666665 6732.326667 7439.3 8 h after light 6615.326110999999 6174.445 7220.61 12 h after light 5460.923333333333 5024.393333 6002.796667 1.5 h after dark 6076.324444666667 5338.236667 7371.77 5.5 h after dark 5613.144444333333 5114.81 6021.763333 9.5 h after dark 7737.940000333333 6769.056667 8366.686667