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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 |
|
0.09 | 0.15 | * | 0.37 | 0.5 | 0.12 | 14 | 0.05 | * | ||||||||||||
2023 |
|
0.07 | 0.15 | 0.192 | 0.37 | 0.61 | 0.123 | 30 | 0.05 | 50 | ||||||||||||
2022 |
|
0.06 | 0.17 | 0.191 | 0.32 | 0.51 | 0.122 | 29 | 0.05 | 50 | ||||||||||||
2021 |
|
0.06 | 0.18 | * | 0.39 | 0.55 | 0.125 | 22 | 0.05 | * | ||||||||||||
2020 |
|
0.1 | * | * | * | 0.4 | 0.125 | 7 | 0.05 | * | ||||||||||||
2019 |
|
0.07 | 0.16 | * | 0.26 | 0.55 | 0.119 | 26 | 0.05 | * | ||||||||||||
2018 |
|
* | * | * | * | * | * | 0 | * | * | ||||||||||||
2017 |
|
0.08 | 0.18 | * | 0.4 | 0.55 | 0.129 | 20 | 0.05 | * | ||||||||||||
2016 |
|
0.07 | 0.27 | 0.327 | 0.68 | 0.82 | 0.204 | 29 | 0.05 | 85 | ||||||||||||
2015 |
|
0.09 | 0.29 | * | 0.57 | 0.62 | 0.16 | 25 | 0.05 | * | ||||||||||||
2014 |
|
0.07 | 0.27 | 0.29 | 0.61 | 0.69 | 0.183 | 28 | 0.05 | 75 | ||||||||||||
2013 |
|
0.1 | 0.27 | 0.307 | 0.47 | 1.1 | 0.199 | 31 | 0.05 | 80 | ||||||||||||
2012 |
|
0.11 | 0.29 | 0.322 | 0.43 | 0.68 | 0.135 | 30 | 0.05 | 84 | ||||||||||||
2011 |
|
0.1 | 0.23 | 0.282 | 0.47 | 0.8 | 0.176 | 31 | 0.05 | 73 | ||||||||||||
2010 |
|
0.15 | 0.31 | 0.358 | 0.52 | 1.1 | 0.188 | 31 | 0.05 | 93 | ||||||||||||
2009 |
|
0.09 | 0.27 | * | 0.7 | 1.1 | 0.246 | 26 | 0.05 | * | ||||||||||||
2008 |
|
0.06 | 0.3 | 0.326 | 0.51 | 0.75 | 0.156 | 30 | 0.05 | 85 | ||||||||||||
2007 |
|
0.14 | 0.3 | 0.404 | 0.88 | 1.0 | 0.259 | 30 | 0.05 | 105 | ||||||||||||
2006 |
|
0.09 | 0.43 | 0.42 | 0.71 | 1.0 | 0.239 | 29 | 0.05 | 109 | ||||||||||||
2005 |
|
0.13 | 0.34 | 0.505 | 1.1 | 1.4 | 0.347 | 31 | 0.05 | 131 | ||||||||||||
2004 |
|
0.2 | 0.42 | 0.526 | 0.91 | 1.3 | 0.279 | 30 | 0.05 | 137 | ||||||||||||
2003 |
|
0.23 | 0.57 | 0.623 | 1.0 | 1.5 | 0.313 | 30 | 0.05 | 162 | ||||||||||||
2002 |
|
0.21 | 0.49 | * | 1.35 | 1.4 | 0.418 | 26 | 0.05 | * | ||||||||||||
2001 |
|
0.17 | 0.58 | 0.685 | 1.2 | 1.8 | 0.415 | 31 | 0.05 | 178 | ||||||||||||
2000 |
|
0.2 | 0.7 | 0.85 | 1.1 | 2.3 | 0.50 | 30 | 0.2 | 221 | ||||||||||||
1999 |
|
0.1 | 0.7 | 0.87 | 1.9 | 2.4 | 0.63 | 29 | 0.2 | 225 | ||||||||||||
1998 |
|
0.1 | 1.0 | * | 1.5 | 1.8 | 0.48 | 15 | 0.2 | * | ||||||||||||
1997 |
|
0.6 | * | * | * | 0.6 | 0.56 | 1 | 0.2 | * | ||||||||||||
1996 |
|
0.25 | 1.0 | 1.03 | 1.7 | 2.2 | 0.56 | 31 | 0.5 | 268 | ||||||||||||
1995 |
|
0.25 | 1.3 | 1.45 | 2.6 | 3.6 | 0.93 | 31 | 0.5 | 376 | ||||||||||||
1994 |
|
0.25 | 1.9 | 2.01 | 2.8 | 4.8 | 0.92 | 31 | 0.5 | 524 | ||||||||||||
1993 |
|
0.25 | 1.7 | 1.77 | 3.1 | 4.1 | 1.05 | 29 | 0.5 | 461 | ||||||||||||
1992 |
|
0.25 | 2.1 | 1.90 | 2.9 | 4.0 | 0.94 | 30 | 0.5 | 494 | ||||||||||||
1991 |
|
0.25 | 2.2 | 2.22 | 3.7 | 4.7 | 1.30 | 29 | 0.5 | 578 | ||||||||||||
1990 |
|
0.8 | 2.4 | 2.55 | 4.0 | 5.4 | 1.25 | 28 | 0.5 | 664 | ||||||||||||
1989 |
|
0.8 | 2.8 | 3.01 | 4.5 | 5.1 | 1.20 | 21 | 0.5 | 782 | ||||||||||||
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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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