Decade	Performance(%)
1830	1.7
1840	12.8
1850	6.9
1860	11.3
1870	6.7
1880	5.6
1890	5.1
1900	10.4
1910	2
1920	12.9
1930	-2.3
1940	9.2
1950	18.8
1960	8.5
1970	6.2
1980	16.1
1990	18.1
2000	-1

d. What is the exponentially smoothed forecast for the 2010s? 1% (Type an integer or decimal rounded to the nearest tenth as needed.)How have stocks performed in the past? The following table shows performance of a broad measure of stock performance (by percentage) for each decade from the 1830s through the 2000s