I can't speak for the department near you, but in many departments, particularly towns/more rural areas, the fire department/fire station responds to both medical and fire calls. It very well may be the majority of responses were medical in nature. For example, 70% of NYFD call volume is medical [1].

[1]: https://www.firerescue1.com/fdny/should-nyc-split-ems-from-f...