At the end of the 20th Century in 1999, 81% of Americans identified as Christians. Today that percentage has dropped to 76%. In the past 14 years Protestant churches have lost more than a fifth of their memberships. Catholic membership has declined by 11% compared to 1999. Some of these Christians may have simply changed their self-reported affiliation to Christian (non-specific), but a large number of Americans now report they have no religion or no religious affiliation. In the past 14 years the percentage of Nones has almost doubled.