This program calculates some information from billionaires.csv.

The data set has 2614 rows and 22 columns.

The total wealth of billionaires (in billions) by year was:
year
1996    1049.5
2001    1728.6
2014    6454.4
Name: wealth.worth in billions, dtype: float64

The number of female billionaires in the data set is 249.