condition mean min max 2 h after light 4.216565 3.34408 5.0019 6 h after light 4.5433 3.6097 5.37099 10 h after light 4.5371516666666665 3.67553 5.93293 14 h after light 5.684085 2.65209 9.10287 18 h after light 6.440483333333333 3.14769 8.94263 2 h after dark 4.6836883333333335 3.19369 9.34884