Years compared | RR | 95% CI | p-value* | |
---|---|---|---|---|
2002 with 2001 | 0.99 | 0.978 | 1.03 | 0.9379 |
2003 with 2001 | 0.95 | 0.93 | 0.98 | < 0.0001 |
2004 with 2001 | 0.97 | 0.95 | 0.99 | 0.0104 |
2005 with 2001 | 0.99 | 0.97 | 1.01 | 0.1918 |
2006 with 2001 | 0.94 | 0.92 | 0.96 | < 0.0001 |
2007 with 2006 | 1.09 | 1.06 | 1.11 | < 0.0001 |
2008 with 2006 | 1.12 | 1.09 | 1.14 | < 0.0001 |
2009 with 2006 | 1.15 | 1.12 | 1.17 | < 0.0001 |
2010 with 2006 | 1.14 | 1.12 | 1.17 | < 0.0001 |