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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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2023 |
|
0.87 | 0.87 | * | 2.0 | 2.7 | 0.59 | 21 | 1.74 | * | ||||||||||||
2022 |
|
0.87 | 0.87 | 1.39 | 2.5 | 3.3 | 0.82 | 30 | 1.74 | 14 | ||||||||||||
2021 |
|
0.87 | 0.87 | * | 3.6 | 4.2 | 1.13 | 24 | 1.74 | * | ||||||||||||
2020 |
|
0.87 | * | * | * | 2.1 | 0.40 | 9 | 1.74 | * | ||||||||||||
2019 |
|
0.87 | 0.87 | 1.12 | 2.0 | 3.5 | 0.60 | 34 | 1.74 | 11 | ||||||||||||
2018 |
|
0.87 | 0.87 | 1.06 | 0.87 | 3.3 | 0.56 | 37 | 1.74 | 10 | ||||||||||||
2017 |
|
0.87 | 0.87 | 1.32 | 2.7 | 4.7 | 1.00 | 33 | 1.74 | 13 | ||||||||||||
2016 |
|
0.87 | 0.87 | * | 2.4 | 4.5 | 0.86 | 33 | 1.74 | * | ||||||||||||
2015 |
|
0.87 | 0.87 | 1.03 | 0.87 | 2.7 | 0.49 | 33 | 1.74 | 10 | ||||||||||||
2014 |
|
1.05 | 1.05 | * | 2.3 | 16 | 3.75 | 16 | 2.1 | * | ||||||||||||
2013 |
|
0.75 | 0.75 | * | 1.9 | 2.1 | 0.41 | 21 | 1.5 | * | ||||||||||||
2012 |
|
0.75 | 0.75 | 0.82 | 0.75 | 1.9 | 0.30 | 32 | 1.5 | 8 | ||||||||||||
2011 |
|
0.75 | 0.75 | * | 1.5 | 2.4 | 0.39 | 29 | 1.5 | * | ||||||||||||
2010 |
|
0.75 | 0.75 | 0.79 | 0.75 | 1.6 | 0.16 | 29 | 1.5 | 8 | ||||||||||||
2009 |
|
0.75 | 0.75 | 0.85 | 0.75 | 2.2 | 0.38 | 29 | 1.5 | 8 | ||||||||||||
2008 |
|
* | * | * | * | * | * | 0 | * | * | ||||||||||||
2007 |
|
0.75 | 0.75 | * | 0.75 | 1.6 | 0.18 | 23 | 1.5 | * | ||||||||||||
2006 |
|
* | * | * | * | * | * | 0 | * | * | ||||||||||||
2005 |
|
* | * | * | * | * | * | 0 | * | * | ||||||||||||
2004 |
|
* | * | * | * | * | * | 0 | * | * | ||||||||||||
2003 |
|
1 | * | * | * | 4.0 | 1.64 | 5 | 2.0 | * | ||||||||||||
2002 |
|
1 | 1 | 2.21 | 4.0 | 10 | 1.79 | 36 | 2.0 | 22 | ||||||||||||
2001 |
|
1.5 | 1.5 | 1.79 | 3.0 | 5.0 | 0.85 | 39 | 3.0 | 18 | ||||||||||||
2000 |
|
0.2 | 1.2 | * | 2.3 | 2.9 | 0.70 | 19 | 0.2 | * | ||||||||||||
1999 |
|
0.1 | 1.2 | 1.60 | 2.4 | 5.2 | 1.01 | 32 | 0.2 | 16 | ||||||||||||
1998 |
|
0.3 | 1.3 | 1.33 | 2.7 | 3.5 | 0.85 | 34 | 0.2 | 13 | ||||||||||||
1997 |
|
0.8 | 1.5 | 1.88 | 2.9 | 7.3 | 1.28 | 30 | 0.2 | 18 | ||||||||||||
1996 |
|
0.6 | 1.5 | 1.88 | 3.5 | 4.6 | 1.15 | 34 | 0.2 | 18 | ||||||||||||
1995 |
|
0.3 | 1.4 | * | 3.1 | 5.2 | 0.99 | 32 | 0.2 | * | ||||||||||||
1994 |
|
0.5 | 1.6 | * | 3.5 | 5.9 | 1.13 | 52 | 0.2 | * | ||||||||||||
1993 |
|
* | * | * | * | * | * | 0 | * | * | ||||||||||||
1992 |
|
* | * | * | * | * | * | 0 | * | * | ||||||||||||
1991 |
|
* | * | * | * | * | * | 0 | * | * | ||||||||||||
1990 |
|
* | * | * | * | * | * | 0 | * | * | ||||||||||||
1989 |
|
* | * | * | * | * | * | 0 | * | * | ||||||||||||
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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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