NASA mission to Mars has found life. The Migronians have been living in the Red Planet for thousands, if not millions of years. Once upon a time, the Migronians were a great and rich civilization but they never learned economics and as a result they did not use their resources efficiently. The lack of understanding of concepts like "scarcity" and "opportunity cost" has led to an almost collapse of their economy, population and environment (honestly, their planet looks like a lot of dust). In a desperate effort to save this civilization, UC-Hollywood has sent to Mars its Statistician professor and Astronaut "aficionado" Dr Matt Damon. His task as a Statistician: to build basic macroeconomic statistics of the Migronian economy. Your task as a soon to be macroeconomic expert: to use his statistics to construct some basic macro indicators so the evolution of the Migronian economy can be better understood.

At his arrival in Mars, Dr Damon learns that Migronians only produce four products:

- Darhash Migronian Ice Tea (all produced and consumed in Mars)

- Youshemi Migronian Lemon Tea (all produced and consumed in Mars)

- Avocado toasts (all exported to Planet Earth)

- UFOs (all used by the Government as transportation for Migronian exports)

The following table summarizes the relevant data collected by Dr Damon for the last five years of the Migronian economy.

Quantity of Price of Quantity of Price of Quantity of Price of Year Darhash Tea Youshemi Tea Youshemi Tea Avocado Avocado Quantity of Price of Darhash Tea UFOS Toasts UFOS Toasts 2016 2'500 10 1'000 15 3'000 10 1'000 2017 2'200 14 900 15 3'000 2 8 1'200 2018 2'100 15 1'000 20 3'000 2 6 1'400 2019 1'800 15 700 25 3'000 2 5 1'300 2020 1'500 16 500 30 2'500 K 5 1'300