Graph

Trumpeter Swan
(Cygnus buccinator)

North American Trumpeter Swan Survey

Geographic area or population: Rocky mountain population

Graph showing the trend of the species through out the observed years
 
Listing of the individual data points that make up the graph
YearAbundance95% Lower Confidence Interval95% Higher Confidence Interval
196875  
197588  
1980276  
1985429  
1990758  
19951445  
20002175  
20053270  
201057735194.86351.2
20151095710512.0811401.92

Notes on numeric data: Ex represents 10 to the power of x; For example 1.2345E-2 is equivalent to 0.012345