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DuPage County Statistics

AverageMedian# YearsHigh CountLow Count
All Years1963.51876253551 (2011)1226 (1999)
1st 10 Years1659.11600102145 (1992)1226 (1999)
Last 10 Years2415.42336103551 (2011)1805 (2007)
Likelihood that the numbers counted have increased: 99%*.

Fermilab Site Statistics

AverageMedian# YearsHigh CountLow Count
All Years48.741.518129 (1997)18 (1999)
1st 10 Years51.14010129 (1997)18 (1999)
Last 10 Years4335.51096 (2014)20 (2009)
Likelihood that the numbers counted have decreased: 42%*.

* 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
19901395199119411992214519931556
19941598199521101996160219971699
19981319199912262000126020011684
20021959200313682004207320052324
20061805200718052008187620092758
20102527201135512012295020132348
20142210

Fermilab Site Data

YearTallyYearTallyYearTallyYearTally
1990--1991--1992--1993--
1994--1995--1996--1997129
199844199918200033200152
200283200336200452200532
200632200739200820200920
201025201167201247201352
201496