The number of teams that have participated (1980-2015)
The number of volunteers that have participated (1980-2015)
The number of hours played during each contest (1980-2015)
The fee (in dollars) teams have been required to pay to participate (1980-2015)
The number of telephone hotlines that have been needed (1980-2015)
Teams with multiple wins (1980-2015)
A selection of some of the most frequently participating teams (1980-2015)