condition mean min max 4 h after light 135.562872 123.013133 148.112611 8 h after light 153.716879 150.140244 157.293514 12 h after light 166.815744 149.544002 184.087486 4 h after dark 197.61377 170.780715 224.446825 8 h after dark 205.88727649999998 184.371915 227.402638 12 h after dark 154.844177 154.844177 154.844177