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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 | 0.025 | 0.30 | 0.444 | 1.1 | 1.7 | 0.463 | 31 | 0.05 | |||||||||||||
2003 | 0.025 | 0.13 | 0.283 | 0.53 | 1.3 | 0.284 | 31 | 0.05 | |||||||||||||
2002 | 0.025 | 0.23 | 0.340 | 0.74 | 1.6 | 0.351 | 31 | 0.05 | |||||||||||||
2001 | 0.05 | 0.14 | 0.419 | 0.89 | 2.8 | 0.587 | 28 | 0.05 | |||||||||||||
2000 | 0.05 | 0.18 | 0.457 | 1.3 | 2.2 | 0.551 | 31 | 0.05 | |||||||||||||
1999 | 0.025 | 0.31 | 0.619 | 1.41 | 2.2 | 0.630 | 30 | 0.05 | |||||||||||||
1998 | 0.08 | 0.22 | 0.607 | 1.54 | 3.0 | 0.721 | 30 | 0.05 | |||||||||||||
1997 | 0.06 | 0.33 | 0.681 | 1.6 | 2.6 | 0.686 | 31 | 0.05 | |||||||||||||
1996 | 0.07 | 0.21 | * | 1.16 | 2.1 | 0.573 | 20 | 0.05 | |||||||||||||
1995 | 0.11 | 0.45 | 0.602 | 1.24 | 2.2 | 0.529 | 24 | 0.05 | |||||||||||||
1994 | 0.19 | 0.94 | * | 2.15 | 3.1 | 0.838 | 14 | 0.05 | |||||||||||||
1993 | 0.12 | 0.54 | 0.983 | 2.54 | 2.8 | 0.945 | 24 | 0.05 | |||||||||||||
1992 | 0.11 | 0.26 | 1.18 | 3.6 | 4.6 | 1.47 | 24 | 0.05 | |||||||||||||
1991 | 0.10 | 0.49 | * | 1.2 | 3.7 | 0.833 | 19 | 0.05 | |||||||||||||
1990 | 0.33 | * | * | * | 2.7 | 0.945 | 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. |