DESCRIPTIVE ANALYSIS-Population size Tine Series Plot of population size Time Series Plot of increase 8500 500 1000 1949 1958 1985 Year Year Observation Continuous increase since 1962 Increase rate decrease last 20 years 自强不息,厚德载物- IE( @Applied Statistics, Group Report--自强不息，厚德载物-- IE @Applied Statistics, Group Report 11 Observation: Continuous increase since 1962 Increase rate decrease last 20 years DESCRIPTIVE ANALYSIS-Population size