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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 | 0.13 | * | * | * | 0.47 | 0.152 | 5 | 0.05 | |||||||||||||
2004 | 0.025 | 0.09 | 0.305 | 1.04 | 1.3 | 0.416 | 29 | 0.05 | |||||||||||||
2003 | 0.025 | 0.15 | 0.305 | 1.2 | 1.4 | 0.411 | 31 | 0.05 | |||||||||||||
2002 | 0.025 | 0.12 | 0.384 | 1.13 | 2.0 | 0.550 | 30 | 0.05 | |||||||||||||
2001 | 0.025 | 0.15 | 0.304 | 0.87 | 2.4 | 0.536 | 31 | 0.05 | |||||||||||||
2000 | 0.025 | 0.12 | 0.396 | 1.06 | 2.5 | 0.645 | 30 | 0.05 | |||||||||||||
1999 | 0.025 | 0.14 | 0.414 | 1.25 | 2.1 | 0.581 | 30 | 0.05 | |||||||||||||
1998 | 0.025 | 0.22 | 0.438 | 1.5 | 2.0 | 0.549 | 31 | 0.05 | |||||||||||||
1997 | 0.025 | 0.20 | 0.588 | 1.3 | 3.0 | 0.753 | 30 | 0.05 | |||||||||||||
1996 | 0.025 | 0.19 | 0.374 | 1.03 | 1.6 | 0.428 | 24 | 0.05 | |||||||||||||
1995 | 0.025 | 0.34 | 0.542 | 1.58 | 2.1 | 0.597 | 24 | 0.05 | |||||||||||||
1994 | 0.32 | * | * | * | 4.4 | 1.34 | 8 | 0.05 | |||||||||||||
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. |