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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 | 0.14 | * | * | * | 0.73 | 0.221 | 5 | 0.05 | |||||||||||||
2004 | 0.025 | 0.14 | 0.238 | 0.66 | 1.6 | 0.335 | 30 | 0.05 | |||||||||||||
2003 | 0.025 | 0.16 | 0.295 | 0.73 | 1.4 | 0.345 | 31 | 0.05 | |||||||||||||
2002 | 0.025 | 0.13 | 0.344 | 0.92 | 1.4 | 0.405 | 30 | 0.05 | |||||||||||||
2001 | 0.025 | 0.12 | 0.321 | 0.78 | 1.8 | 0.387 | 31 | 0.05 | |||||||||||||
2000 | 0.025 | 0.11 | 0.370 | 1.02 | 2.1 | 0.546 | 30 | 0.05 | |||||||||||||
1999 | 0.025 | 0.16 | 0.416 | 1.12 | 2.3 | 0.544 | 30 | 0.05 | |||||||||||||
1998 | 0.025 | 0.21 | 0.573 | 1.6 | 3.5 | 0.797 | 31 | 0.05 | |||||||||||||
1997 | 0.025 | 0.13 | 0.354 | 1.01 | 1.5 | 0.411 | 30 | 0.05 | |||||||||||||
1996 | 0.025 | 0.16 | 0.294 | 0.58 | 1.3 | 0.324 | 24 | 0.05 | |||||||||||||
1995 | 0.07 | 0.32 | * | 1.13 | 2.0 | 0.513 | 20 | 0.05 | |||||||||||||
1994 | 0.18 | 1.05 | * | 2.47 | 2.6 | 0.802 | 14 | 0.05 | |||||||||||||
1993 | 0.10 | 0.41 | 1.01 | 2.62 | 5.2 | 1.29 | 23 | 0.05 | |||||||||||||
1992 | 0.07 | 0.26 | 0.598 | 1.07 | 4.2 | 0.921 | 24 | 0.05 | |||||||||||||
1991 | 0.08 | 0.27 | 0.782 | 2.17 | 3.7 | 0.986 | 24 | 0.05 | |||||||||||||
1990 | 0.22 | * | * | * | 4.2 | 1.35 | 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. |