condition mean min max 4 h after light 9.756933 9.725217 9.788649 8 h after light 10.348559 9.766985 10.930133 12 h after light 9.063517000000001 8.783138 9.343896 4 h after dark 11.1484845 10.341041 11.955928 8 h after dark 10.222163 8.387326 12.057 12 h after dark 10.341041 10.341041 10.341041