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DuPage County Statistics

AverageMedian# YearsHigh CountLow Count
All Years3374 (2011)0 (2013)
1st 10 Years0000 (1999)0 (1999)
Last 10 Years3374 (2011)0 (2013)
Likelihood that the numbers counted have increased: 99%*.
Likelihood that occurrence rate has increased: 99%**

Fermilab Site Statistics

AverageMedian# YearsHigh CountLow Count
All Years4414 (2007)0 (2014)
1st 10 Years0000 (2006)0 (2006)
Last 10 Years4414 (2007)0 (2014)
Likelihood that the numbers counted have increased: 26%*.
Likelihood that occurrence rate has increased: 52%**

* The probability is obtained from a "Wilcoxon two-sample test" comparing the numbers reorded in the first 10 years with those recorded in the last 10 years.
** Assuming the observation rate is uniform, this number is the probability of obtaining a smaller difference between the number of records in the first and last 10 years of the count than is observed. A high probability implies that the assumption is wrong.

DuPage County Data

YearTallyYearTallyYearTallyYearTally
19900199101992019930
19940199501996019970
19980199902000020010
20020200302004020053
20060200742008020092
20104201142012320130
20141

Fermilab Site Data

YearTallyYearTallyYearTallyYearTally
1990--1991--1992--1993--
1994--1995--1996--19970
19980199902000020010
20020200302004020050
20060200742008020090
20100201102012020130
20140