Year | Time frame | Number of cases | Expected cases | Annual cases (1/100,000) | RR | LLR | P value |
---|---|---|---|---|---|---|---|
2004 | March 2004 to July 2004 | 7881 | 4795.25 | 1.5 | 3.06 | 1688.52 | < 0.001 |
2005 | February 2005 to July 2005 | 14,116 | 9132.22 | 2.2 | 3.34 | 2838.01 | < 0.001 |
2006 | February 2006 to July 2006 | 14,001 | 9428.36 | 2.2 | 2.84 | 2286.67 | < 0.001 |
2007 | March 2007 to August 2007 | 14,124 | 9941.55 | 2.2 | 2.48 | 1836.26 | < 0.001 |
2008 | March 2008 to August 2008 | 20,013 | 13,959.37 | 3.0 | 2.55 | 2735.15 | < 0.001 |
2009 | February 2009 to July 2009 | 25,807 | 17,760.81 | 3.9 | 2.62 | 3738.03 | < 0.001 |
2010 | March 2010 to July 2010 | 20,745 | 14,156.48 | 3.7 | 2.21 | 2595.43 | < 0.001 |
2011 | February 2011 to July 2011 | 26,430 | 18,918.72 | 4.0 | 2.29 | 3032.48 | < 0.001 |
2012 | February 2012 to July 2012 | 27,075 | 19,649.54 | 4.0 | 2.20 | 2856.34 | < 0.001 |
2013 | February 2013 to July 2013 | 28,463 | 21,564.29 | 4.2 | 1.93 | 2223.25 | < 0.001 |
2014 | March 2014 to August 2014 | 38,903 | 28,846.16 | 5.7 | 2.09 | 3619.29 | < 0.001 |
2015 | March 2015 to July 2015 | 33,492 | 23,888.54 | 5.8 | 1.98 | 3265.38 | < 0.001 |
2016 | March 2016 to August 2016 | 31,495 | 23,698.30 | 4.5 | 1.99 | 2631.76 | < 0.001 |
2017 | February 2017 to July 2017 | 24,576 | 19,118.56 | 3.6 | 1.79 | 1563.96 | < 0.001 |
2004–2017 | February 2011 to August 2017 | 310,508 | 233,673.11 | 3.5 | 1.91 | 24,486.25 | < 0.001 |