The problem with today"s housing crisis, politically, is that it is just not all that visible. At the end of the Second World War, families with kids【C1】______into shared houses. In 1946, more than 46,000 families took over military camps, empty hotels and flats. That was a(n)【C2】______housing crisis. Today"s does not come【C3】______: most people still have somewhere to live. It is nonetheless【C4】______, and worthy of political attention. But the question of exactly why our expensive homes【C5】______a crisis is more subtly depicted than it can appear. Since 1973 at least, the total number of "dwellings" has climbed far faster than the population. How is this possible, 【C6】______that building rates have【C7】______? And doesn"t it mean that there isn"t really a housing crisis? First, in the 1960s and 1970s, while councils happily knocked【C8】______new estates, they were also busy pulling down lots of old "【C9】______" houses too. Social housing helped people move from broken old crowded houses into【C10】______new flats or houses, typically with much more【C11】______. Meanwhile, new homes were built on green fields. Average household sizes【C12】______ dramatically, even as the average house got bigger. Though the housing stock【C13】______by less than the rate of building,【C14】______got a lot more space in which to live. In recent decades, 【C15】______, everyone has got a lot less space. We have had【C16】______little new building, but【C17】______we have magically created lots of new housing. Essentially, so far, the housing crisis has been【C18】______by subdividing our homes to【C20】______the extra population growth.【C19】______, what new homes we do build are the smallest in the developed world.