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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 | 0.08 | * | * | * | 0.76 | 0.316 | 5 | 0.05 | |||||||||||||
2004 | 0.025 | 0.09 | 0.143 | 0.35 | 0.63 | 0.158 | 30 | 0.05 | |||||||||||||
2003 | 0.025 | 0.11 | 0.211 | 0.33 | 1.2 | 0.294 | 31 | 0.05 | |||||||||||||
2002 | 0.025 | 0.09 | 0.160 | 0.43 | 0.73 | 0.179 | 30 | 0.05 | |||||||||||||
2001 | 0.025 | 0.11 | 0.233 | 0.64 | 1.3 | 0.316 | 31 | 0.05 | |||||||||||||
2000 | 0.025 | 0.13 | 0.321 | 1.01 | 1.4 | 0.412 | 30 | 0.05 | |||||||||||||
1999 | 0.025 | 0.21 | 0.363 | 1.0 | 1.7 | 0.399 | 30 | 0.05 | |||||||||||||
1998 | 0.025 | 0.31 | 0.403 | 1.0 | 1.6 | 0.392 | 31 | 0.05 | |||||||||||||
1997 | 0.025 | 0.19 | 0.286 | 0.55 | 1.5 | 0.323 | 30 | 0.05 | |||||||||||||
1996 | 0.025 | 0.19 | 0.310 | 0.74 | 1.6 | 0.362 | 24 | 0.05 | |||||||||||||
1995 | 0.025 | 0.38 | 0.462 | 0.85 | 1.4 | 0.322 | 24 | 0.05 | |||||||||||||
1994 | 0.18 | 0.76 | * | 2.12 | 2.5 | 0.738 | 14 | 0.05 | |||||||||||||
1993 | 0.09 | 0.46 | 0.900 | 2.08 | 2.8 | 0.826 | 24 | 0.05 | |||||||||||||
1992 | 0.025 | 0.33 | 0.529 | 1.66 | 2.2 | 0.640 | 24 | 0.05 | |||||||||||||
1991 | 0.025 | 0.33 | 0.717 | 2.22 | 3.6 | 0.946 | 24 | 0.05 | |||||||||||||
1990 | 0.23 | * | * | * | 2.2 | 0.608 | 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. |