Analysis of export to Russia data

The analysis is contained in Quarto documents:

1. Lithuania beer export.
2. On EU trade with Russia and its neighbours after Russian invasion of Ukraine.

The second document can be cited as the following:

V. Zemlys-Balevičius, "On EU trade with Russia and its neighbours after Russian invasion of Ukraine", vzemlys.github.io/ruimpeks, 25 January, 2022, https://vzemlys.github.io/ruimpeks/eu_ru_trade.html