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Read About Estimated Risk |
Year | Months Present |
Minimum | Median | Mean | 90th Percentile |
Maximum | Standard Deviation |
Number of Observations |
Detection Limit |
Estimated Risk |
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2023 | * | * | * | * | * | * | 0 | * | * | |||||||||||||
2022 | * | * | * | * | * | * | 0 | * | * | |||||||||||||
2021 | * | * | * | * | * | * | 0 | * | * | |||||||||||||
2020 | * | * | * | * | * | * | 0 | * | * | |||||||||||||
2019 | * | * | * | * | * | * | 0 | * | * | |||||||||||||
2018 | * | * | * | * | * | * | 0 | * | * | |||||||||||||
2017 | * | * | * | * | * | * | 0 | * | * | |||||||||||||
2016 | * | * | * | * | * | * | 0 | * | * | |||||||||||||
2015 | * | * | * | * | * | * | 0 | * | * | |||||||||||||
2014 | 0.01 | 0.02 | * | 0.09 | 0.11 | 0.034 | 15 | 0.01 | * | |||||||||||||
2013 | 0.02 | 0.04 | 0.055 | 0.11 | 0.17 | 0.038 | 29 | 0.01 | 6 | |||||||||||||
2012 | 0.01 | 0.04 | 0.053 | 0.10 | 0.13 | 0.029 | 29 | 0.01 | 6 | |||||||||||||
2011 | 0.02 | 0.05 | 0.064 | 0.09 | 0.26 | 0.053 | 27 | 0.01 | 7 | |||||||||||||
2010 | 0.02 | 0.05 | 0.054 | 0.10 | 0.12 | 0.031 | 29 | 0.01 | 6 | |||||||||||||
2009 | 0.02 | 0.05 | 0.060 | 0.12 | 0.13 | 0.035 | 31 | 0.01 | 7 | |||||||||||||
2008 | 0.02 | 0.05 | 0.063 | 0.11 | 0.18 | 0.038 | 30 | 0.01 | 7 | |||||||||||||
2007 | 0.02 | 0.06 | 0.083 | 0.18 | 0.29 | 0.064 | 29 | 0.01 | 10 | |||||||||||||
2006 | 0.02 | 0.07 | 0.094 | 0.16 | 0.42 | 0.075 | 31 | 0.01 | 11 | |||||||||||||
2005 | 0.02 | 0.09 | 0.135 | 0.25 | 0.39 | 0.096 | 29 | 0.01 | 16 | |||||||||||||
2004 | 0.04 | 0.10 | 0.151 | 0.25 | 0.70 | 0.135 | 31 | 0.01 | 17 | |||||||||||||
2003 | 0.04 | 0.13 | * | 0.26 | 0.61 | 0.137 | 26 | 0.01 | * | |||||||||||||
2002 | 0.04 | 0.17 | 0.247 | 0.47 | 0.81 | 0.198 | 31 | 0.01 | 29 | |||||||||||||
2001 | 0.08 | 0.24 | 0.296 | 0.49 | 1.1 | 0.236 | 30 | 0.01 | 34 | |||||||||||||
2000 | 0.12 | 0.27 | 0.368 | 0.62 | 1.9 | 0.348 | 29 | 0.01 | 43 | |||||||||||||
1999 | 0.03 | 0.46 | * | 1.74 | 2.1 | 0.605 | 19 | 0.01 | * | |||||||||||||
1998 | 0.04 | 0.38 | 0.503 | 0.80 | 1.8 | 0.427 | 28 | 0.01 | 58 | |||||||||||||
1997 | 0.11 | 0.34 | 0.365 | 0.51 | 1.2 | 0.227 | 29 | 0.01 | 42 | |||||||||||||
1996 | 0.09 | 0.38 | 0.440 | 0.61 | 1.4 | 0.230 | 30 | 0.01 | 51 | |||||||||||||
1995 | 0.03 | 0.39 | 0.487 | 0.91 | 1.7 | 0.360 | 31 | 0.01 | 57 | |||||||||||||
1994 | 0.04 | 0.42 | 0.663 | 1.42 | 2.1 | 0.530 | 29 | 0.01 | 77 | |||||||||||||
1993 | 0.04 | 0.48 | 0.620 | 1.28 | 1.7 | 0.472 | 33 | 0.01 | 72 | |||||||||||||
1992 | 0.11 | 0.60 | 0.609 | 1.01 | 1.5 | 0.305 | 30 | 0.01 | 71 | |||||||||||||
1991 | 0.07 | 0.60 | 0.785 | 1.56 | 2.4 | 0.615 | 29 | 0.01 | 91 | |||||||||||||
1990 | 0.20 | 0.85 | 1.19 | 3.1 | 5.0 | 1.09 | 31 | 0.01 | 138 | |||||||||||||
1989 | 0.15 | 1.2 | * | 3.04 | 5.0 | 1.37 | 12 | 0.01 | * | |||||||||||||
Notes: | Values below the Limit of Detection (LoD) assumed to be ½ LoD. Means and risks shown only for years with data in all 12 months. "*" means there was insufficient or no data available to determine the value. |