Population growth/setback.
The Total Population Growth Rate of a country is calculated in a simple way:
Growth with setback?
Can a country with more mortality than birth rate have a positive growth ratio?
Natural Population Growth.
Figure out what the natural population growth means.
Researching...
Calculate the Total Population Growth Rate (or ratio) in Spain in the last year. Next, calculate the Total Population Growth Rate in your autonomous community in the last year.
The necessary data can be found in the National Statistics Institute (http://www.ine.es).