Thatâs about an average monthâs salary in China, according to this data from 2012, or three months of a bus driverâs monthly salary, according to another source. In other words, buying an iPhone for your average Chinese citizen would be much like buying a cheapish second-hand car for $5,000 to $10,000 in the U.S.
States choose whether they want to hold primaries or caucuses. Most states hold primaries but states like Iowa, Louisiana, Minnesota and Maine use the caucus system.
Closed primaries happen in many European countries, while open primaries have so far only occurred in the socialist and social-democratic parties in Greece and Italy, whereas the France's Socialist Party organised the first open primary in France in October 2011.