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DuPage County Statistics

AverageMedian# YearsHigh CountLow Count
All Years877726251779 (1990)490 (2013)
1st 10 Years1170.51018101779 (1990)667 (1996)
Last 10 Years673.566510787 (2009)490 (2013)
Likelihood that the numbers counted have decreased: 99%*.

Fermilab Site Statistics

AverageMedian# YearsHigh CountLow Count
All Years9.181829 (1998)1 (2009)
1st 10 Years1191029 (1998)2 (2005)
Last 10 Years5.951020 (2014)1 (2009)
Likelihood that the numbers counted have decreased: 97%*.

* 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.

DuPage County Data

YearTallyYearTallyYearTallyYearTally
19901779199110431992173919931725
19949341995133919966671997802
1998993199968420006592001766
2002634200370020047262005787
2006594200778020086242009787
2010645201170220126852013490
2014641

Fermilab Site Data

YearTallyYearTallyYearTallyYearTally
1990--1991--1992--1993--
1994--1995--1996--19979
1998291999142000920018
2002152003920041220052
20063200772008120091
20102201172012820138
201420