Yield on a 30-year Treasury Note

The yield on a 30-year treasury note at the end of each year since 1990 is recorded below. Compute a five-year weighted moving average using weights of .1, .1, .2, .3, and .3, respectively. Describe the trend in yield. See attached for table.

I need help with the steps to solve the problem.

Thank you.

Solution attaches a .doc file with a graph and calculations showing how to describe the yield trend of weighted moving averages.