- Austria
- Christian and Zicsi, 1999
- Canada
- British Columbia: Reynolds and Wetzel, 2008, 2012
- Hawaii
- Reynolds and Wetzel, 2012
- Latvia
- Ventins, 2011c
- Sweden
- Blakemore, 2007
- United Kingdom
- Sims and Gerard, 1999; Scotland: Carpenter, 2011
- United States
- Georgia: Reynolds, 1995; Massachusetts: Reynolds, 1995; New Jersey: Reynolds, 1995; Oregon: Reynolds, 1995; Pennsylvania: Reynolds, 1995; Washington: Reynolds, 1995
- National reviews per state:
- Reynolds and Wetzel, 2004: Georgia, Massachusetts, New Jersey, Oregon, Pennsylvania, Washington
- Reynolds and Wetzel, 2008: Georgia, Massachusetts, New Jersey, Oregon, Pennsylvania, Washington, Wyoming
- Reynolds and Wetzel, 2012: Georgia, Massachusetts, Maryland, New Jersey, Oregon, Pennsylvania, Washington, Wyoming
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Data are not exhaustive. The database is permanently a work in progress.