current LCU is the current monetary unit, which refers to the nominal price; The constant LCU is the monetary unit of constant or base period, which refers to the actual price. The difference between the two is that although the monetary unit is the same, the actual purchasing power of a unit of currency is different due to price changes (inflation).
the notation PS: lcu generally appears in international data, and the currencies of different countries are different, so it should be explained by Local.