condition mean min max 3 h after light 8.56984 8.05124 8.91086 6 h after light 9.05354 7.47 9.87652 9 h after light 10.538666666666668 10.2303 10.9699 12 h after light 11.089945 8.30548 12.6206 3 h after dark 12.765933333333333 11.7788 13.5386 6 h after dark 12.281933333333333 11.0461 14.1668 9 h after dark 8.58202 7.52399 9.97674 12 h after dark 7.77844 7.68516 7.87172