1. Percent of San Francisco residents who commute by bicycle, as of 1998: 3-4%
2. SFBC's goal for percent of SF residents who commute by bicycle by 2010: 10%
3. Percent of central Amsterdam residents who commute by bicycle: 53%
4. Percent of Amsterdam residents who own a car: 30%
5. Percent of car-free households in San Francisco: 26.9%
6. Percent of car-free households in Jersey City, New Jersey: 34.25%
7. Percent of all trips taken by bicycle in Sweden's urban areas: 10%
8. Percent of all trips taken by bicycle in the U.S.: 1%
9. Percent of all trips taken by car in the U.S.: 84%
10. Number of bicycles produced worldwide in the year 2000: 101 million
11. Number of cars produced worldwide in the year 2000: 41 million
12. Number of bicycles bought worldwide during the 1990s: 960 million
13. Number of cars bought worldwide during the same time: 370 million

Sources: 1, Binder Research Poll, 1998; 2, SFBC staff; 3, 4, an Amsterdam newspaper; 5, 6, U.S. Census Bureau; 7, 9, 11-14, Earth Policy Institute; 8, 10, Transportation Quarterly.