condition mean min max 4 h after light 10.138828 10.093451 10.184205 8 h after light 10.4171435 9.168448 11.665839 12 h after light 11.419505000000001 10.33845 12.50056 4 h after dark 9.2797385 9.134631 9.424846 8 h after dark 10.440243500000001 10.33845 10.542037 12 h after dark 10.542037 10.542037 10.542037