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Year | Months Present |
Minimum | Median | Mean | 90th Percentile |
Maximum | Standard Deviation |
Number of Observations |
Detection Limit |
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2023 |
|
0.05 | 0.1 | * | 0.2 | 0.3 | 0.07 | 17 | 0.1 | ||||||||||||
2022 |
|
0.05 | 0.1 | 0.13 | 0.2 | 0.4 | 0.09 | 31 | 0.1 | ||||||||||||
2021 |
|
0.05 | 0.1 | * | 0.3 | 0.4 | 0.11 | 15 | 0.1 | ||||||||||||
2020 |
|
0.1 | * | * | * | 0.4 | 0.09 | 6 | 0.1 | ||||||||||||
2019 |
|
0.05 | 0.05 | 0.14 | 0.3 | 0.4 | 0.12 | 28 | 0.1 | ||||||||||||
2018 |
|
0.05 | 0.1 | 0.17 | 0.4 | 0.6 | 0.13 | 29 | 0.1 | ||||||||||||
2017 |
|
0.05 | 0.1 | 0.18 | 0.4 | 0.5 | 0.14 | 30 | 0.1 | ||||||||||||
2016 |
|
0.05 | 0.2 | 0.25 | 0.4 | 0.7 | 0.16 | 28 | 0.1 | ||||||||||||
2015 |
|
0.05 | 0.2 | 0.26 | 0.6 | 0.7 | 0.19 | 29 | 0.1 | ||||||||||||
2014 |
|
0.05 | 0.05 | 0.15 | 0.4 | 0.6 | 0.16 | 30 | 0.1 | ||||||||||||
2013 |
|
0.05 | 0.05 | 0.13 | 0.3 | 0.8 | 0.16 | 33 | 0.1 | ||||||||||||
2012 |
|
0.05 | 0.05 | 0.09 | 0.2 | 0.3 | 0.08 | 30 | 0.1 | ||||||||||||
2011 |
|
0.05 | 0.1 | 0.16 | 0.4 | 0.5 | 0.13 | 31 | 0.1 | ||||||||||||
2010 |
|
0.05 | 0.2 | 0.17 | 0.3 | 0.6 | 0.12 | 29 | 0.1 | ||||||||||||
2009 |
|
0.05 | 0.1 | 0.15 | 0.3 | 0.5 | 0.13 | 31 | 0.1 | ||||||||||||
2008 |
|
0.05 | 0.05 | 0.08 | 0.2 | 0.3 | 0.07 | 28 | 0.1 | ||||||||||||
2007 |
|
0.05 | 0.05 | 0.09 | 0.2 | 0.4 | 0.09 | 31 | 0.1 | ||||||||||||
2006 |
|
0.05 | 0.05 | 0.11 | 0.2 | 1.5 | 0.27 | 28 | 0.1 | ||||||||||||
2005 |
|
0.05 | 0.05 | 0.14 | 0.2 | 0.4 | 0.11 | 29 | 0.1 | ||||||||||||
2004 |
|
0.05 | 0.1 | 0.13 | 0.2 | 0.4 | 0.10 | 30 | 0.1 | ||||||||||||
2003 |
|
0.05 | 0.05 | 0.13 | 0.2 | 0.4 | 0.11 | 31 | 0.1 | ||||||||||||
2002 |
|
0.05 | 0.2 | 0.21 | 0.4 | 0.8 | 0.17 | 31 | 0.1 | ||||||||||||
2001 |
|
0.05 | 0.3 | 0.33 | 0.6 | 0.7 | 0.20 | 29 | 0.1 | ||||||||||||
2000 |
|
0.05 | 0.3 | 0.33 | 0.7 | 1.2 | 0.28 | 31 | 0.1 | ||||||||||||
1999 |
|
0.05 | 0.2 | 0.24 | 0.5 | 0.9 | 0.24 | 30 | 0.1 | ||||||||||||
1998 |
|
0.05 | 0.2 | * | 0.4 | 0.5 | 0.13 | 17 | 0.1 | ||||||||||||
1997 |
|
0.05 | * | * | * | 0.05 | 0.20 | 1 | 0.1 | ||||||||||||
1996 |
|
0.05 | 0.1 | 0.21 | 0.5 | 0.7 | 0.20 | 29 | 0.1 | ||||||||||||
1995 |
|
0.05 | 0.05 | 0.15 | 0.4 | 0.6 | 0.15 | 32 | 0.1 | ||||||||||||
1994 |
|
0.05 | 0.4 | 0.60 | 1.0 | 3.5 | 0.67 | 30 | 0.1 | ||||||||||||
1993 |
|
0.05 | 0.4 | 0.69 | 1.5 | 2.6 | 0.65 | 30 | 0.1 | ||||||||||||
1992 |
|
0.4 | 1.0 | 1.01 | 1.6 | 1.9 | 0.41 | 30 | 0.1 | ||||||||||||
1991 |
|
0.1 | 0.9 | * | 1.4 | 1.6 | 0.42 | 16 | 0.1 | ||||||||||||
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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