Given the following transactions, estimates the uses and sources of cash flows (assuming no other transactions took place in that year). Calculate the net cash flow position for the company during the year, that is, did the cash increase or decrease and by how much during the year?

AR AP S-T-D (short term) Marketable Securities 2015 20,000,000 18,000,000 4,000,000 3,000,000 2016 42,000,000 5,000,000 6,000,000 9,000,000