Year,Incidence 1996,6.11 1997,4.7 1998,6.09 1999,5.83 2000,6.28 2001,5.97 2002,8.26 2003,7.33 2004,6.76 2005,7.88 2006,6.67 2007,9.1 2008,11.56 2009,12.53 2010,9.75 2011,10.62 2012,9.82 2013,11.49 2014,10.51 2015,11.87 2016,11.28 2017,13.15 2018,10.3 2019,10.64 2020,5.46 2021,7.42 2022,18.84