Overall, the top 10 countries accounted for nearly 56.5 per cent of all foreign visa-related searches in 2018.

The denial rate of H-1B petitions for initial employment for Amazon, Microsoft, Intel and Google in 2015 was just 1 pc.

The State Department did not name the Chinese officials affected by the visa clampdown.

For debit cards, the fees are on average between 0.40 per cent and 0.80 per cent of the transaction amount.