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Year | Months Present |
Minimum | Median | Mean | 90th Percentile |
Maximum | Standard Deviation |
Number of Observations |
Detection Limit |
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2005 | 0.18 | * | * | * | 1.0 | 0.339 | 5 | 0.05 | |||||||||||||
2004 | 0.025 | 0.19 | 0.325 | 0.86 | 1.2 | 0.334 | 30 | 0.05 | |||||||||||||
2003 | 0.025 | 0.19 | 0.372 | 0.85 | 1.6 | 0.380 | 29 | 0.05 | |||||||||||||
2002 | 0.06 | 0.19 | 0.404 | 0.82 | 2.3 | 0.466 | 28 | 0.05 | |||||||||||||
2001 | 0.025 | 0.21 | * | 0.51 | 0.87 | 0.203 | 25 | 0.05 | |||||||||||||
2000 | 0.06 | 0.50 | 0.616 | 1.36 | 2.0 | 0.523 | 29 | 0.05 | |||||||||||||
1999 | 0.09 | 0.33 | 0.882 | 1.62 | 6.3 | 1.18 | 30 | 0.05 | |||||||||||||
1998 | 0.09 | 0.28 | 0.561 | 1.0 | 4.4 | 0.879 | 30 | 0.05 | |||||||||||||
1997 | 0.08 | 0.37 | 0.485 | 1.0 | 1.5 | 0.390 | 31 | 0.05 | |||||||||||||
1996 | * | * | * | * | * | * | 0 | * | |||||||||||||
1995 | * | * | * | * | * | * | 0 | * | |||||||||||||
1994 | * | * | * | * | * | * | 0 | * | |||||||||||||
1993 | * | * | * | * | * | * | 0 | * | |||||||||||||
1992 | * | * | * | * | * | * | 0 | * | |||||||||||||
1991 | * | * | * | * | * | * | 0 | * | |||||||||||||
1990 | * | * | * | * | * | * | 0 | * | |||||||||||||
1989 | * | * | * | * | * | * | 0 | * | |||||||||||||
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. |