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Read About Estimated Risk |
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Year | Months Present |
Minimum | Median | Mean | 90th Percentile |
Maximum | Standard Deviation |
Number of Observations |
Detection Limit |
Estimated Risk |
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2024 |
|
0.12 | 0.16 | * | 0.22 | 0.3 | 0.05 | 14 | 0.1 | * | ||||||||||||
2023 |
|
0.05 | 0.21 | 0.857 | 1.46 | 10 | 1.99 | 30 | 0.1 | 8 | ||||||||||||
2022 |
|
0.11 | 0.41 | 1.06 | 1.4 | 11 | 2.73 | 29 | 0.1 | 11 | ||||||||||||
2021 |
|
0.05 | 0.15 | * | 0.62 | 7.2 | 1.50 | 22 | 0.1 | * | ||||||||||||
2020 |
|
0.05 | * | * | * | 0.24 | 0.071 | 7 | 0.1 | * | ||||||||||||
2019 |
|
0.05 | 0.16 | * | 0.62 | 1.4 | 0.318 | 26 | 0.1 | * | ||||||||||||
2018 |
|
* | * | * | * | * | * | 0 | * | * | ||||||||||||
2017 |
|
0.17 | 1.85 | * | 55.1 | 110 | 32.0 | 20 | 0.1 | * | ||||||||||||
2016 |
|
0.79 | 26.5 | 48.2 | 130 | 190 | 53.9 | 30 | 0.1 | 477 | ||||||||||||
2015 |
|
0.05 | 0.81 | * | 3.68 | 7.5 | 1.84 | 25 | 0.1 | * | ||||||||||||
2014 |
|
0.11 | 0.49 | 1.49 | 3.83 | 14 | 2.77 | 28 | 0.1 | 15 | ||||||||||||
2013 |
|
0.16 | 0.69 | 1.33 | 3.0 | 8.1 | 1.72 | 31 | 0.1 | 13 | ||||||||||||
2012 |
|
0.05 | 0.46 | 2.41 | 8.92 | 21 | 4.54 | 30 | 0.1 | 24 | ||||||||||||
2011 |
|
0.05 | 0.3 | 1.43 | 1.9 | 15 | 2.80 | 31 | 0.1 | 14 | ||||||||||||
2010 |
|
0.05 | 0.47 | 2.65 | 9.4 | 17 | 4.60 | 31 | 0.1 | 26 | ||||||||||||
2009 |
|
0.05 | 0.15 | * | 0.34 | 0.76 | 0.171 | 27 | 0.1 | * | ||||||||||||
2008 |
|
0.05 | 0.17 | 0.202 | 0.32 | 0.78 | 0.138 | 30 | 0.1 | 2 | ||||||||||||
2007 |
|
0.05 | 0.17 | 0.193 | 0.28 | 0.5 | 0.085 | 30 | 0.1 | 2 | ||||||||||||
2006 |
|
0.05 | 0.16 | 0.18 | 0.26 | 0.58 | 0.11 | 29 | 0.1 | 2 | ||||||||||||
2005 |
|
0.05 | 0.18 | 0.301 | 0.45 | 3.4 | 0.59 | 31 | 0.1 | 3 | ||||||||||||
2004 |
|
0.05 | 0.24 | 0.291 | 0.48 | 1.3 | 0.24 | 29 | 0.1 | 3 | ||||||||||||
2003 |
|
0.05 | 0.32 | 0.447 | 1.07 | 1.8 | 0.484 | 30 | 0.1 | 4 | ||||||||||||
2002 |
|
0.1 | 0.24 | * | 0.97 | 1.4 | 0.36 | 26 | 0.1 | * | ||||||||||||
2001 |
|
0.5 | 0.27 | 0.437 | 0.75 | 1.0 | 0.247 | 31 | 0.1 | 4 | ||||||||||||
2000 |
|
0.5 | 0.5 | 0.69 | 0.5 | 3.6 | 0.58 | 30 | 1.0 | 7 | ||||||||||||
1999 |
|
0.5 | 0.5 | 0.58 | 0.5 | 1.4 | 0.24 | 26 | 1.0 | 6 | ||||||||||||
1998 |
|
0.5 | 0.5 | * | 1.1 | 7.2 | 1.72 | 15 | 1.0 | * | ||||||||||||
1997 |
|
0.5 | * | * | * | 0.5 | 0.94 | 1 | 1.0 | * | ||||||||||||
1996 |
|
0.5 | 0.5 | 0.83 | 1.3 | 5.6 | 0.94 | 31 | 1.0 | 8 | ||||||||||||
1995 |
|
0.5 | 0.5 | 0.98 | 1.8 | 2.1 | 0.58 | 31 | 1.0 | 10 | ||||||||||||
1994 |
|
0.5 | 0.5 | 0.93 | 1.8 | 2.5 | 0.62 | 31 | 1.0 | 9 | ||||||||||||
1993 |
|
0.5 | 0.5 | 1.10 | 2.1 | 3.7 | 0.87 | 29 | 1.0 | 11 | ||||||||||||
1992 |
|
0.5 | 0.5 | 0.60 | 0.5 | 2.2 | 0.33 | 30 | 1.0 | 6 | ||||||||||||
1991 |
|
0.5 | 0.5 | 0.69 | 1.3 | 1.9 | 0.42 | 29 | 1.0 | 7 | ||||||||||||
1990 |
|
0.5 | 1.2 | * | 2.3 | 4.2 | 0.97 | 24 | 1.0 | * | ||||||||||||
1989 |
|
0.5 | 0.5 | 0.91 | 1.8 | 2.3 | 0.57 | 24 | 1.0 | 9 | ||||||||||||
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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. |
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