condition mean min max 4 h after light 167.816624 143.067673 192.565575 8 h after light 172.09407199999998 167.866242 176.321902 12 h after light 159.48634700000002 133.441269 185.531425 4 h after dark 152.60188349999999 141.495522 163.708245 8 h after dark 165.45950299999998 145.693595 185.225411 12 h after dark 101.808527 101.808527 101.808527