condition mean min max 0 h after light 2.12797 2.03089 2.22505 2 h after light 8.334975 7.20922 9.46073 4 h after light 12.8042 12.5239 13.0845 8 h after light 7.124975 5.62576 8.62419 12 h after light 10.011225 9.00945 11.013 2 h after dark 8.9028 6.3998 11.4058 4 h after dark 5.3218049999999995 4.21116 6.43245 8 h after dark 2.75597 1.8238 3.68814 12 h after dark 2.815475 2.50203 3.12892