condition mean min max 0 h after light 2.73507 2.30556 3.16458 2 h after light 1.988995 1.36802 2.60997 4 h after light 13.059149999999999 11.939 14.1793 8 h after light 37.65325 34.2999 41.0066 12 h after light 32.789500000000004 30.4753 35.1037 2 h after dark 27.96885 26.9485 28.9892 4 h after dark 19.12565 16.6986 21.5527 8 h after dark 6.193355 4.50085 7.88586 12 h after dark 2.04893 1.9434 2.15446