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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 | * | |||||||||||||
2004 | * | * | * | * | * | * | 0 | * | |||||||||||||
2003 | * | * | * | * | * | * | 0 | * | |||||||||||||
2002 | 0.025 | * | * | * | 1.6 | 0.483 | 10 | 0.05 | |||||||||||||
2001 | 0.025 | 0.13 | 0.340 | 0.75 | 3.4 | 0.653 | 31 | 0.05 | |||||||||||||
2000 | 0.025 | 0.12 | 0.442 | 1.07 | 2.6 | 0.627 | 30 | 0.05 | |||||||||||||
1999 | 0.025 | 0.25 | 0.579 | 1.53 | 3.0 | 0.707 | 30 | 0.05 | |||||||||||||
1998 | 0.07 | 0.24 | 0.536 | 1.5 | 2.4 | 0.661 | 31 | 0.05 | |||||||||||||
1997 | 0.05 | 0.21 | 0.614 | 1.23 | 4.0 | 0.883 | 30 | 0.05 | |||||||||||||
1996 | 0.025 | 0.23 | 0.433 | 1.0 | 2.0 | 0.496 | 24 | 0.05 | |||||||||||||
1995 | 0.06 | 0.49 | 0.717 | 1.75 | 3.2 | 0.761 | 24 | 0.05 | |||||||||||||
1994 | 0.37 | 1.2 | * | 3.56 | 7.1 | 1.82 | 14 | 0.05 | |||||||||||||
1993 | 0.12 | 0.53 | 1.29 | 3.71 | 4.8 | 1.47 | 24 | 0.05 | |||||||||||||
1992 | 0.08 | 0.43 | 1.07 | 3.22 | 5.0 | 1.39 | 24 | 0.05 | |||||||||||||
1991 | 0.09 | 0.39 | 0.845 | 2.04 | 3.5 | 0.875 | 24 | 0.05 | |||||||||||||
1990 | 0.27 | * | * | * | 6.2 | 1.93 | 8 | 0.05 | |||||||||||||
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. |