condition mean min max 2 h after light 3.5747 3.40316 3.66852 6 h after light 4.35529 3.96288 4.58377 10 h after light 4.280376666666667 4.16905 4.35867 2 h after dark 4.164976666666667 3.9882 4.38389 6 h after dark 4.565943333333333 4.40239 4.67575 10 h after dark 4.27532 4.17972 4.32558