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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 | * | |||||||||||||
2001 | * | * | * | * | * | * | 0 | * | |||||||||||||
2000 | 0.20 | * | * | * | 0.78 | 0.236 | 5 | 0.05 | |||||||||||||
1999 | 0.025 | 0.24 | 0.513 | 1.28 | 1.7 | 0.527 | 29 | 0.05 | |||||||||||||
1998 | 0.025 | 0.25 | 0.555 | 1.32 | 3.2 | 0.754 | 30 | 0.05 | |||||||||||||
1997 | 0.025 | 0.21 | 0.457 | 1.2 | 1.6 | 0.475 | 31 | 0.05 | |||||||||||||
1996 | 0.025 | 0.19 | 0.424 | 1.32 | 2.5 | 0.628 | 24 | 0.05 | |||||||||||||
1995 | 0.05 | 0.29 | 0.483 | 1.2 | 1.4 | 0.458 | 24 | 0.05 | |||||||||||||
1994 | 0.21 | 1.05 | * | 2.22 | 3.2 | 0.877 | 14 | 0.05 | |||||||||||||
1993 | 0.05 | 0.40 | 0.831 | 2.12 | 3.2 | 0.905 | 24 | 0.05 | |||||||||||||
1992 | 0.08 | 0.36 | 0.813 | 2.27 | 3.5 | 0.967 | 24 | 0.05 | |||||||||||||
1991 | 0.11 | 0.48 | 0.747 | 2.01 | 2.7 | 0.774 | 24 | 0.05 | |||||||||||||
1990 | 0.31 | * | * | * | 4.7 | 1.46 | 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. |