Annual toll stickers account for over half of all vignettes sold, and their number rose 3% year-on-year, DARS told the STA.

The sale of weekly toll stickers, the second biggest category, was up 7% while 9% more monthly stickers were sold as well.

Full-year figures for 2014 meanwhile indicate a decline in sales of annual toll stickers and a surge in weekly sticker sales.

Of the 5.85 million sold for 2014, 3.89 million were weekly stickers (+5%), 1.16 million monthly (+2%) and 776,000 annual (-4%).