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DuPage County Statistics

AverageMedian# YearsHigh CountLow Count
All Years166.616625183 (2004)151 (1990)
1st 10 Years160.915910175 (1997)151 (1990)
Last 10 Years171.417210181 (2014)162 (2006)
Likelihood that the numbers counted have increased: 98%*.

Fermilab Site Statistics

AverageMedian# YearsHigh CountLow Count
All Years91.393.518112 (2014)38 (2008)
1st 10 Years93.694.510108 (1999)83 (2002)
Last 10 Years88.99310112 (2014)38 (2008)
Likelihood that the numbers counted have decreased: 2%*.

* 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
1990151199116619921611993154
1994157199515319961651997175
1998153199917420001662001163
2002166200316620041832005172
2006162200717120081692009172
2010172201117520121662013174
2014181

Fermilab Site Data

YearTallyYearTallyYearTallyYearTally
1990--1991--1992--1993--
1994--1995--1996--199793
19988319991082000102200184
20028320031032004100200596
200684200792200838200997
2010892011942012852013102
2014112