There's no clear pattern here. Really, you have all sorts of configurations in different countries, so I don't think you can make a general statement on this.
On April 11th, 2017. See this statement in context.
On April 11th, 2017. See this statement in context.
Deputy Director, Statistics Directorate, Organisation for Economic Co-operation and Development
There's no clear pattern here. Really, you have all sorts of configurations in different countries, so I don't think you can make a general statement on this.
See context to find out what was said next.