condition mean min max 2 h after light 1.2991951666666666 0.477651 2.14211 6 h after light 1.5691025 0.662912 2.19985 10 h after light 1.3249695 0.416459 3.2723 14 h after light 1.3527976666666666 0.462296 1.72533 18 h after light 1.6305958333333335 0.988535 3.18851 2 h after dark 1.327051 0.236001 2.04614