Table 1.
Descriptive statistics.
| Variablesa | # of Obs. | Mean | Median | Minimum | Maximum |
|---|---|---|---|---|---|
| Freight | 735 | 8.289 | 8.197 | 6.768 | 10.161 |
| Passenger | 697 | 8.994 | 9.242 | 6.126 | 9.886 |
| Income | 884 | 9.996 | 10.159 | 6.741 | 10.846 |
| Wealth | 627 | 11.571 | 11.643 | 8.252 | 12.622 |
a
Freight is total inland freight per capita in tonne-km; Passenger is total inland passenger per capita in passenger-km; Income is gross domestic product per capita in constant (2017) USD (PPP); and Wealth is market-value national wealth per capita in constant (2017) USD (PPP). All variables are in per capita and natural log form.