According to a recent study (Dogan, Mattei, Religious Beliefs in Europe: Factors of Accelerated Decline), 47% of French people declared themselves as agnostics in 2003. This situation is often called "Post-Christian Europe". A decrease in religiousness and church attendance in Denmark, Belgium, France, Germany, Netherlands, and Sweden has been noted, despite a concurrent increase in some countries like Greece (2% in 1 year). The Eurobarometer survey must be taken with caution, however, as there are discrepancies between it and national census results. For example, in the United Kingdom, the 2001 census revealed over 70% of the population regarded themselves as "Christian" with only 15% professing to have "no religion", though the wording of the question has been criticized as "leading" by the British Humanist Association. Romania, one of the most religious countries in Europe, witnessed a threefold increase in the number of atheists between 2002 and 2011, as revealed by the most recent national census.