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DuPage County Statistics

AverageMedian# YearsHigh CountLow Count
All Years663.4577252021 (1997)69 (1992)
1st 10 Years696.6438.5102021 (1997)69 (1992)
Last 10 Years621.4583.5101020 (2011)289 (2008)
Likelihood that the numbers counted have decreased: 56%*.

Fermilab Site Statistics

AverageMedian# YearsHigh CountLow Count
All Years36.73318113 (1997)1 (2008)
1st 10 Years34.32110113 (1997)10 (2000)
Last 10 Years37.735.51073 (2013)1 (2008)
Likelihood that the numbers counted have increased: 66%*.

* 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
199060619913521992691993164
199422919952941996192719972021
1998525199977920005642001769
20023342003102120047192005590
2006577200748120082892009680
20103592011102020125432013693
2014982

Fermilab Site Data

YearTallyYearTallyYearTallyYearTally
1990--1991--1992--1993--
1994--1995--1996--1997113
199810199919200010200145
200219200352200416200536
20062320072920081200931
201035201154201236201373
201459