question: Approximately how many more people live in Bangkok in 2018 compared to 2010?
#1 return Bangkok 
#2 return people that live in  #1 
#3 return #2 in  2018 
#4 return #2 in  2010 
#5 return the  number of  #3 
#6 return the  number of  #4 
#7 return the  difference of #5 and  #6