Year 1997 1999 2002 2004 2006 2008 Screening Mass 0.413 0.44 0.534 0.612 0.663 0.714 Screening  Nat 0.41 0.439 0.486 0.535 0.571 0.622 Mort Mass 23.4 22.5 21.6 18 17.1 15.4 Mort Nat 21.5 20.9 19.7 18 17.2 16.4

Table 1: Trends in colorectal cancer screening and mortality.