condition mean min max 4 h after light 4.7409799999999995 4.65515 4.82878 8 h after light 4.74587 4.6147800000000005 4.90974 12 h after light 4.795773333333333 4.68604 4.91406 4 h after dark 4.624076666666666 4.535909999999999 4.7215300000000004 8 h after dark 4.827913333333333 4.72617 4.95639 12 h after dark 4.75001 4.7087699999999995 4.829219999999999