Pragmatics is a subfield of linguistics. It is the study of how context influences the interpretation of meaning. Context here must be interpreted as situation as it may include any imaginable extralinguistic factor.
... 14.1% who are 65 years of age or older. The median age is 28 years. For every 100 females there are 82.8 males. For every 100 females age 18 and over, there are 78.8 ...