| Election Year | Democratic Party Vote % | Democratic Party Seats | Republican Party Vote % | Republican Party Seats | Proportionality Deviation | | ------------- | ----------------------- | ---------------------- | ----------------------- | ---------------------- | ------------------------- | | 2002 | 49.56 | 47 (42.73%) | 50.27 | 63 (57.27%) | 13.835 | | 2004 | 50.97 | 52 (47.27%) | 48.23 | 58 (52.73%) | 8.194 | | 2006 | 56.17 | 58 (52.73%) | 43.3 | 52 (47.27%) | 7.415 | | 2008 | 57.08 | 67 (60.91%) | 41.56 | 43 (39.09%) | 6.298 | | 2010 | 45.98 | 47 (42.73%) | 54.02 | 63 (57.27%) | 6.505 | | 2012 | 53.97 | 51 (46.36%) | 46.03 | 59 (53.64%) | 15.212 | | 2014 | 51.15 | 47 (42.73%) | 48.85 | 63 (57.27%) | 16.845 | | 2016 | 49.13 | 47 (42.73%) | 49.2 | 63 (57.27%) | 14.475 | | 2018 | 52.13 | 52 (47.27%) | 47.4 | 58 (52.73%) | 10.184 | | 2020 | 49.86 | 52 (47.27%) | 49.6 | 58 (52.73%) | 5.714 | | 2022 | 50.56 | 56 (50.91%) | 49.23 | 54 (49.09%) | 0.488 |