2023 Washington Code 84.72.020 – Basis of apportionment

2022 Washington Code 84.72.020 – Basis of apportionment

2020 Washington Code 84.72.020 – Basis of apportionment

2019 Washington Code 84.72.020

2018 Washington Code 84.72.020 – Basis of apportionment

2016 Washington Code 84.72.020 – Basis of apportionment

2015 Washington Code 84.72.020 – Basis of apportionment

2014 Washington Code 84.72.020 – Basis of apportionment

2013 Washington Code 84.72.020 – Basis of apportionment

2009 Washington Code 84.72.020 – Basis of apportionment