The UK Cards Association figures show that the number of adults shopping online has increased dramatically in the last few years.In 2011, 37.6 million adults used plastic cards to purchase goods and services over the internet, equating to 75% of the adult population.Spending 75% of all spending in the UK retail sector was made using plastic cards as of the end of November 2013. During November 2015, domestic spending on debit cards amounted to £38.9 billion, compared to £34.9 billion spent in November 2014. The number of international purchases on debit cards reached 118 million in November 2015, up from 93 million in 2014.