Polish new-car registrations increased for the 10th consecutive month in March, providing another sign that Europe’s car market is picking up after a six-year slump.

Research institute Samar, which compiles Polish car market data, said on Thursday that registrations of passenger cars and small trucks in March rose by 39 percent year-on-year to 39,861, after a 33 percent increase in February.

Samar said car sales were boosted by the fact that March was the last month when corporate buyers could receive favorable tax treatment and be able to fully deduct the value added tax from the purchase.

Some of the vehicles bought in Poland are re-exported, mainly to western Europe. Samar estimated that re-exports accounted for about 6 percent of March sales.

The top-selling carmakers in Poland are Volkswagen and its subsidiary, Skoda, along with Toyota, General Motors’ Opel and Ford.