Below are the annual returns for Zenon and Dynamics.

Year	Zenon	Dynamics
2005	15.56%	51.00%
2006	18.34%	78.56%
2007	16.47%	44.67%
2008	7.56%	67.56%
2009	20.09%	34.56%
2010	-15.23%	24.42%
2011	34.56%	7.89%
2012	13.56%	24.78%
2013	-12.34%	30.79%
2014	9.89%	-47.67%

What is the variance for a portfolio with 60% invested in Zenon and 40% invested in Dynamics? This is a sample. It might be helpful to create a column that shows the annual returns to a 60/40 portfolio.