For the S&P 500 index and broad market calculate the average return and standard deviation of return. Annual returns for the years 1927-1943 are presented on the left.
	S&P 500 Index	Broad Market Index
Arithmetic Average
Geometric Average
Standard Deviation
How do these metrics compare between S&P 500 Index and the Broad Market Index? What do they say about the risk and return of the two indices?

Year	S&P 500 Index	Broad Market Index
1927	36%	34%
1928	44%	38%
1929	-8%	-13%
1930	-25%	-28%
1931	-44%	-44%
1932	-9%	-8%
1933	50%	56%
1934	-1%	5%
1935	47%	45%
1936	32%	33%
1937	-35%	-35%
1938	29%	28%
1939	-1%	3%
1940	-11%	-7%
1941	-13%	-10%
1942	19%	16%
1943	25%	29%