You invest $1000 per month for 9 months starting 4 months from now (i.e., from month 4 to month 12), and then you increase your investment by $100 per month for 2 years (i.e., from month 13 to month 36). If the rate of return is 60% per year, what is the equivalent annual worth ($ per year) of this cash flow in years 1 to 3