Case of monthly dengue fever in Taiwan
   The chart shows the monthly dengue case statistics for 2006 to 2016,
  
and the graphs show that dengue fever cases are increasing year by year.
  
This topic will find a year-on-year association of dengue fever cases.
 The relationship between dengue fever and rainfall in Tainan
   This chart of monthly rainfall and dengue cases in 2012 to 2016 in tainan,
  
And when this month have havey rain and dengue case were be increased.
  
So we can get a conclusion that is wet environment will caused dengues easily.
 Average temperature in Tainan(each year)
   We compare both Monthly average of temperature in 1897-1945 and 2012 to 2016 from
CMB data in tainan ,
   and we can observed Monthly average of temperature
in 2012 to 2016 which is most heigher than Monthly average of temperature in 1897-1945.
   So we can find that the temperture is warmer than before,
  
and increased time about mosquito breeding.