S&P500 Sharpe ratio

# Calculate total return and annualized return from price data 
total_return = (sp500_value[____] - ____[____]) / ____[____]

# Annualize the total return over 4 year 
annualized_return = ((____ + ____)**(____/____))-1

# Create the returns data 
returns_sp500 = ____.____()

# Calculate annualized volatility from the standard deviation
vol_sp500 = ____.____() * np.sqrt(____)

# Calculate the Sharpe ratio 
sharpe_ratio = ((____ - rfr) / ____)
print (sharpe_ratio)