According to the Greeting Card Association, 190 million Valentine's Day cards are exchanged annually, making Valentine's Day the second most popular greeting card–giving occasion, after Christmas.

美国贺卡协会称，每年交换的情人节贺卡达1.9亿张，这使得情人节成为第二大赠送贺卡最多的节日，位列圣诞节之后。

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Sharon Little, chief executive of the Greeting Card Association, said more cards were sent per person in the UK than anywhere else in the world, but the change in prices was a "worry".

BBC: Stamp prices: First-class stamps to cost 60p