YMMV for sure, "There are eight million stories in the naked city..."
All of them, would fit nicely into that chart, but explaining the trends would be a challenge.
I can think of a number of reasons for "Married with children" to be cut in half over 40 years. Kids grow up, death/divorce, ageing population, etc. But which reason is primary, has the biggest effect, would be much tougher.
The 120% increase in "Men living alone", is obviously due to an increase in intelligence.
