A "mil rate" is defined as the number of tax dollars per $1,000 of evaluation of your building and property.  For instance, if your combined evaluation for house and land is $100,000 and the "mil rate" is 18, then 100 x $18 = $1,800.

Past mil rates are listed here:
2021 = 6.745
2020 = 10.35
2019 = 
2018 = 10.4
2017 = 9.75