Information on state valuations can be found here:
http://www.maine.gov/revenue/propertytax/sidebar/statevaluation.htm

2019 -- $289,075,560
2018 -- $
2017 -- $283,900,000
2016 -- $276,100,000
2015 -- $265,600,000
2014 -- $270,000,000
2013 -- $273,150,000
2012 -- $273,500,000