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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 | * | * | ||||||||||||
2023 |
|
* | * | * | * | * | * | 0 | * | * | ||||||||||||
2022 |
|
* | * | * | * | * | * | 0 | * | * | ||||||||||||
2021 |
|
0.02 | 0.02 | * | 0.05 | 0.08 | 0.016 | 18 | 0.04 | * | ||||||||||||
2020 |
|
0.02 | * | * | * | 0.08 | 0.030 | 7 | 0.04 | * | ||||||||||||
2019 |
|
0.02 | 0.02 | 0.034 | 0.08 | 0.14 | 0.031 | 29 | 0.04 | 36 | ||||||||||||
2018 |
|
0.02 | 0.02 | 0.049 | 0.08 | 0.24 | 0.052 | 29 | 0.04 | 53 | ||||||||||||
2017 |
|
0.02 | 0.02 | 0.044 | 0.09 | 0.21 | 0.045 | 28 | 0.04 | 48 | ||||||||||||
2016 |
|
0.02 | 0.04 | 0.050 | 0.10 | 0.15 | 0.040 | 31 | 0.04 | 54 | ||||||||||||
2015 |
|
0.02 | 0.02 | 0.050 | 0.10 | 0.21 | 0.046 | 30 | 0.04 | 54 | ||||||||||||
2014 |
|
0.02 | 0.02 | 0.044 | 0.11 | 0.23 | 0.047 | 32 | 0.04 | 47 | ||||||||||||
2013 |
|
0.02 | 0.02 | 0.059 | 0.14 | 0.36 | 0.076 | 30 | 0.04 | 64 | ||||||||||||
2012 |
|
0.02 | 0.02 | 0.035 | 0.06 | 0.21 | 0.037 | 30 | 0.04 | 38 | ||||||||||||
2011 |
|
0.02 | 0.02 | 0.056 | 0.12 | 0.20 | 0.052 | 30 | 0.04 | 60 | ||||||||||||
2010 |
|
0.02 | 0.02 | 0.042 | 0.09 | 0.13 | 0.031 | 30 | 0.04 | 45 | ||||||||||||
2009 |
|
0.02 | 0.02 | 0.062 | 0.16 | 0.33 | 0.067 | 31 | 0.04 | 67 | ||||||||||||
2008 |
|
0.02 | 0.02 | 0.047 | 0.09 | 0.18 | 0.039 | 31 | 0.04 | 50 | ||||||||||||
2007 |
|
0.02 | 0.05 | 0.057 | 0.12 | 0.28 | 0.056 | 30 | 0.04 | 62 | ||||||||||||
2006 |
|
0.02 | 0.02 | 0.063 | 0.16 | 0.22 | 0.063 | 30 | 0.04 | 68 | ||||||||||||
2005 |
|
0.02 | 0.05 | 0.085 | 0.17 | 0.45 | 0.092 | 31 | 0.04 | 92 | ||||||||||||
2004 |
|
0.02 | 0.06 | 0.079 | 0.15 | 0.27 | 0.068 | 30 | 0.04 | 86 | ||||||||||||
2003 |
|
0.02 | 0.06 | 0.096 | 0.25 | 0.39 | 0.097 | 30 | 0.04 | 104 | ||||||||||||
2002 |
|
0.02 | 0.09 | 0.146 | 0.28 | 0.52 | 0.118 | 28 | 0.04 | 157 | ||||||||||||
2001 |
|
0.02 | 0.11 | 0.130 | 0.20 | 0.48 | 0.105 | 31 | 0.04 | 141 | ||||||||||||
2000 |
|
0.02 | 0.09 | 0.155 | 0.49 | 0.77 | 0.187 | 31 | 0.04 | 168 | ||||||||||||
1999 |
|
0.05 | 0.13 | 0.180 | 0.36 | 0.58 | 0.137 | 31 | 0.04 | 195 | ||||||||||||
1998 |
|
0.07 | 0.14 | 0.206 | 0.44 | 0.59 | 0.148 | 31 | 0.04 | 223 | ||||||||||||
1997 |
|
0.02 | 0.15 | 0.181 | 0.34 | 0.56 | 0.127 | 31 | 0.04 | 195 | ||||||||||||
1996 |
|
0.07 | 0.14 | 0.206 | 0.44 | 0.64 | 0.148 | 31 | 0.04 | 223 | ||||||||||||
1995 |
|
0.06 | 0.19 | 0.250 | 0.54 | 0.64 | 0.164 | 30 | 0.04 | 271 | ||||||||||||
1994 |
|
0.08 | 0.20 | 0.281 | 0.49 | 0.80 | 0.188 | 31 | 0.04 | 304 | ||||||||||||
1993 |
|
0.10 | 0.23 | * | 0.80 | 1.2 | 0.291 | 32 | 0.04 | * | ||||||||||||
1992 |
|
0.02 | 0.20 | 0.217 | 0.46 | 0.76 | 0.164 | 28 | 0.04 | 235 | ||||||||||||
1991 |
|
0.02 | 0.16 | 0.321 | 0.70 | 0.95 | 0.270 | 29 | 0.04 | 347 | ||||||||||||
1990 |
|
0.07 | 0.29 | 0.336 | 0.70 | 0.87 | 0.228 | 29 | 0.04 | 363 | ||||||||||||
1989 |
|
0.13 | 0.29 | 0.388 | 0.82 | 1.3 | 0.302 | 22 | 0.04 | 419 | ||||||||||||
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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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