Summary Statistics of Key Variables Used in Analysis
| Variable | Observation Counts | Mean | SD | Min. | Max. |
|---|---|---|---|---|---|
| Advisory | 1,645,724 | 0.56 | 0.50 | 0 | 1 |
| Visits | 1,645,724 | 1.81 | 22.89 | 0.00 | 6347.00 |
| Travel distance | 1,645,532 | 49.77 | 45.25 | 0.12 | 304.17 |
| Travel time | 1,645,724 | 1.45 | 1.63 | 0.00 | 7.79 |
| Gas cost (cents) | 1,645,724 | 11.05 | 1.02 | 9.53 | 12.33 |
| Maintenance (cents) | 1,645,724 | 9.55 | 0.00 | 9.55 | 9.55 |
| Depreciation (cents) | 1,645,724 | 22.23 | 0.00 | 22.23 | 22.23 |
| Travel costs ($) | 1,645,724 | 81.00 | 94.93 | 0.02 | 751.86 |
| Observed share | 1,645,724 | 0.00047 | 0.00546 | 0.00000 | 0.94325 |
| Bayes share | 1,645,724 | 0.00046 | 0.00543 | 1.63e-17 | 0.94159 |
Note: The dataset includes 7,545 CBG origins, 1,605 water-based recreational sites, and four quarters (2019). The advisory variable is a binary indicator if a site under a fish consumption advisory. Visits measure the number of recreational trips from a CBG to a site in a given quarter. Travel distance (in miles) and travel time (in hours) capture the cost of accessing a site. Observed share refers to the proportion of total visits to a given site from a CBG in a year-quarter, while Bayesian-adjusted share corrects for zero-visit sites using an empirical Bayes adjustment.