Charts and graphs detailing information about past political divisions of the senate, bill introductions, bills passed, and vetoes:

• Senate Political Divisions   Political Division of the State Senate, 1889-1977 and 1979-2008.
• Senate Bills Vetoed   Number of Senate bills that were vetoed or partially vetoed, for years 1984-2008. Percent bills enacted shown down the right-hand sides.
• Senate Bills Passed – Even Years Number of Senate-initiated bills passed by both chambers showing regular and special sessions for years 1984 through 2008.
• Senate Bills Passed – Odd Years Number of Senate-initiated bills passed by both chambers showing regular and special sessions for years 1983 through 2007.
• Washington State Senate Political Division of State Senate, which convened on odd years during 1889-1977.
• Washington State Senate Political Division of State Senate, years 1979-2008.
• Women Legislators in the Washington State Senate, 1923 through 2009.
• Senate bills vetoed Number of Senate-initiated bills that were vetoed or partially vetoed. Governors and years shown on the left axis, majority party on the right.
• Senate Bills – Even Years Total number of bills introduced in the Senate and Passed by both chambers for even years 1984 through 2008.
• Senate Bills – Odd Years Total number of bills introduced in the Senate and Passed by both chambers for even years 1983 through 2007.
• Senate bills passed – odd v. even years Total number of Senate-initiated bills passed by both chambers.
• Senate Bills – Even Years Total number of Senate-initiated bills passed by both chambers for even years 1984 through 2008.
• Senate Bills – Odd Years Total number of Senate-initiated bills passed by both chambers for even years 1983 through 2007.
• Senate bills passed by Legislatures Total number of Senate-initiated bills passed by both chambers from the 48th through the 60th Legislatures (years 1983-2008).