Year Persons (Millions) 1990 0.409 1991 0.414 1992 0.420 1993 0.425 1994 0.431 1995 0.437 1996 0.443 1997 0.449 1998 0.455 1999 0.461 2000 0.467 2001 0.473 2002 0.479 2003 0.487 2004 0.496 2005 0.501 2006 0.507 2007 0.514 2008 0.521 2009 0.528 2010 0.536 2011 0.541 2012 0.546 2013 0.554 2014 0.563 2015 0.567 2016 0.576 2017 0.583 2018 0.590 2019 0.598 2020 0.609 2021 0.618 2022 0.628 2023 0.637 2024 0.647 2025 0.657 2026 0.667 2027 0.677 2028 0.688 2029 0.698