condition mean min max 2 h after light 3.985265 1.35819 6.85587 6 h after light 3.1893133333333332 1.13166 6.31367 10 h after light 5.88285 1.73303 14.9128 14 h after light 4.296706666666667 1.46558 10.9506 18 h after light 3.9094450000000003 1.12314 9.25547 2 h after dark 9.268208333333334 5.98539 15.2598