condition mean min max 3 h after light 4.212085416666667 0.997185 10.8376 7 h after light 3.5807568333333335 0.653508 12.4174 11 h after light 3.8968734166666668 0.536258 13.8081 2 h after dark 4.5013795 0.45263 14.475 6 h after dark 4.549336083333333 0.202451 15.592 10 h after dark 6.0827808333333335 0.568713 18.4308