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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 | 0.10 | * | * | * | 0.40 | 0.117 | 5 | 0.05 | |||||||||||||
2004 | 0.025 | 0.09 | 0.207 | 0.65 | 1.1 | 0.276 | 31 | 0.05 | |||||||||||||
2003 | 0.025 | 0.07 | 0.200 | 0.47 | 1.1 | 0.250 | 31 | 0.05 | |||||||||||||
2002 | 0.025 | 0.09 | 0.240 | 0.58 | 1.1 | 0.293 | 31 | 0.05 | |||||||||||||
2001 | 0.025 | 0.09 | 0.355 | 1.1 | 2.9 | 0.674 | 30 | 0.05 | |||||||||||||
2000 | 0.025 | 0.11 | 0.450 | 1.2 | 2.3 | 0.619 | 31 | 0.05 | |||||||||||||
1999 | 0.025 | 0.28 | 0.639 | 1.62 | 3.0 | 0.766 | 30 | 0.05 | |||||||||||||
1998 | 0.025 | 0.20 | 0.534 | 1.71 | 3.1 | 0.764 | 30 | 0.05 | |||||||||||||
1997 | 0.025 | 0.15 | 0.592 | 1.5 | 2.7 | 0.752 | 31 | 0.05 | |||||||||||||
1996 | 0.025 | 0.14 | 0.381 | 1.1 | 1.8 | 0.467 | 24 | 0.05 | |||||||||||||
1995 | 0.06 | 0.34 | 0.511 | 0.92 | 2.0 | 0.497 | 24 | 0.05 | |||||||||||||
1994 | 0.14 | 0.89 | * | 2.97 | 3.1 | 1.13 | 14 | 0.05 | |||||||||||||
1993 | 0.05 | 0.25 | 0.925 | 2.7 | 4.0 | 1.14 | 24 | 0.05 | |||||||||||||
1992 | 0.05 | 0.21 | 0.832 | 2.62 | 4.1 | 1.20 | 24 | 0.05 | |||||||||||||
1991 | 0.025 | 0.46 | 0.681 | 1.78 | 2.7 | 0.773 | 24 | 0.05 | |||||||||||||
1990 | 0.025 | * | * | * | 5.0 | 1.72 | 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. |