Following are the bus trip destinations and costs for 1988 through 2007. Thanks to Susan Swan for digging up the 1988-2001 data. Costs are shown primarily for the historical record; they are not strictly comparable year-to-year due to choice of different hotels, whether some meals were included, and differences in trip duration. Note that since the bus trips are run in January and February, "1988" (for example) refers to the winter of 1987-88.

There were four bus trips in 2006 and 2007. The fourth trip is listed just below the third trip, in the third column.