|
|||||||||||||||||||||||||||||||
Year | Months Present |
Minimum | Median | Mean | 90th Percentile |
Maximum | Standard Deviation |
Number of Observations |
Detection Limit |
||||||||||||
2024 | * | * | * | * | * | * | 0 | * | |||||||||||||
2023 | * | * | * | * | * | * | 0 | * | |||||||||||||
2022 | 0.005 | 0.005 | * | 0.005 | 0.005 | 0.000 | 11 | 0.01 | |||||||||||||
2021 | 0.005 | 0.005 | * | 0.005 | 0.005 | 0.000 | 22 | 0.01 | |||||||||||||
2020 | 0.005 | * | * | * | 0.005 | 0.000 | 5 | 0.01 | |||||||||||||
2019 | 0.005 | 0.005 | * | 0.005 | 0.005 | 0.000 | 20 | 0.01 | |||||||||||||
2018 | 0.005 | 0.005 | * | 0.005 | 0.005 | 0.000 | 20 | 0.01 | |||||||||||||
2017 | 0.005 | 0.005 | 0.008 | 0.01 | 0.05 | 0.008 | 29 | 0.01 | |||||||||||||
2016 | 0.005 | 0.005 | 0.005 | 0.005 | 0.01 | 0.002 | 31 | 0.01 | |||||||||||||
2015 | 0.005 | 0.005 | 0.007 | 0.005 | 0.04 | 0.007 | 26 | 0.01 | |||||||||||||
2014 | 0.005 | 0.005 | * | 0.01 | 0.03 | 0.005 | 21 | 0.01 | |||||||||||||
2013 | 0.005 | 0.005 | 0.006 | 0.01 | 0.02 | 0.002 | 31 | 0.01 | |||||||||||||
2012 | 0.005 | 0.005 | 0.007 | 0.01 | 0.01 | 0.003 | 29 | 0.01 | |||||||||||||
2011 | 0.005 | 0.01 | 0.009 | 0.02 | 0.02 | 0.004 | 31 | 0.01 | |||||||||||||
2010 | 0.005 | 0.01 | 0.011 | 0.02 | 0.02 | 0.005 | 29 | 0.01 | |||||||||||||
2009 | 0.01 | 0.01 | 0.016 | 0.02 | 0.05 | 0.009 | 29 | 0.01 | |||||||||||||
2008 | 0.01 | 0.02 | 0.019 | 0.02 | 0.05 | 0.008 | 29 | 0.01 | |||||||||||||
2007 | 0.01 | 0.02 | 0.019 | 0.02 | 0.03 | 0.005 | 23 | 0.01 | |||||||||||||
2006 | 0.02 | 0.02 | * | 0.02 | 0.03 | 0.002 | 25 | 0.01 | |||||||||||||
2005 | 0.02 | 0.03 | 0.028 | 0.04 | 0.05 | 0.009 | 30 | 0.01 | |||||||||||||
2004 | 0.03 | 0.04 | 0.052 | 0.08 | 0.35 | 0.066 | 24 | 0.01 | |||||||||||||
2003 | 0.04 | 0.04 | 0.047 | 0.05 | 0.09 | 0.010 | 29 | 0.01 | |||||||||||||
2002 | 0.04 | 0.06 | * | 0.07 | 0.08 | 0.012 | 23 | 0.01 | |||||||||||||
2001 | 0.05 | 0.07 | 0.076 | 0.10 | 0.19 | 0.034 | 28 | 0.01 | |||||||||||||
2000 | 0.06 | 0.09 | 0.108 | 0.16 | 0.26 | 0.051 | 29 | 0.01 | |||||||||||||
1999 | 0.07 | 0.12 | * | 0.20 | 0.23 | 0.050 | 12 | 0.01 | |||||||||||||
1998 | 0.04 | 0.10 | 0.172 | 0.38 | 0.80 | 0.170 | 28 | 0.01 | |||||||||||||
1997 | 0.17 | 0.55 | * | 0.99 | 1.4 | 0.319 | 22 | 0.01 | |||||||||||||
1996 | 0.19 | 0.50 | 0.676 | 1.22 | 3.0 | 0.583 | 28 | 0.01 | |||||||||||||
1995 | 0.19 | 1.4 | 1.30 | 2.0 | 3.5 | 0.677 | 31 | 0.01 | |||||||||||||
1994 | 0.19 | 1.25 | 1.58 | 3.41 | 5.4 | 1.29 | 30 | 0.01 | |||||||||||||
1993 | 0.33 | 1.9 | 2.84 | 4.85 | 7.5 | 1.85 | 26 | 0.01 | |||||||||||||
1992 | 1.1 | 3.1 | 3.40 | 4.9 | 9.9 | 1.75 | 31 | 0.01 | |||||||||||||
1991 | 0.58 | 3.5 | 3.87 | 7.56 | 10 | 2.51 | 27 | 0.01 | |||||||||||||
1990 | 1.3 | 2.6 | 3.32 | 6.48 | 9.7 | 2.07 | 29 | 0.01 | |||||||||||||
1989 | 0.88 | 4.1 | * | 12.4 | 16 | 4.59 | 17 | 0.01 | |||||||||||||
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. |