There's a certain amount of awkwardness involved in wedding gifts, especially when the gift is cash. "It's the thought that counts," might feel, at least to the giver, like it's acquired an asterisk. It's harrowing to figure out how much to give. How long have you known the couple? How much dirt does the couple have on you? How much is everyone else giving?
Tendr, a site for giving personalized cash gifts, has collected data about wedding gifts given through its app last year. The study provides a look at how much other people are giving. It won't solve all of your awkward wedding problems (stop doing the robot), but it's a start.
In addition to data about the average gift in all four seasons, the site created an average dollar amount for every state. That'll help you understand the skimpy gift you got from the aunt in Arkansas. On average, gifts in Arkansas are $73, the lowest of any US state. On the other hand, the state already gave you your first sax-playing president. What more do you want?