Figure 4.
The graph shows average partisanship of a phrase on the Y-axis, ranging from about 0.500 to 0.511, and year on the X-axis from about 1905 to 2020. Two lines are shown. A solid line labelled Real fluctuates above 0.501 with frequent sharp peaks, including a prominent peak above 0.510 around the late 1920s and several peaks between the 1950s and 1970s, followed by moderate increases after 2000. A dashed line labelled Random remains close to 0.500 throughout the period with smaller fluctuations. Shaded areas around both lines indicate variability over time.Left–right partisanship without the extreme left party (SKDL), controls for government status, speaker gender and region
Note(s): Results are based on regressions with controls for government status of speaker’s party, speaker’s gender and the region of the speaker. Confidence intervals are based on subsampling and have 80% nominal coverage. The confidence intervals are computed via subsampling. The series breaks in 1915–1916, when the parliament did not gather, and in 1918 and 1939, when the number of speakers from left parties was below 30 (1 and 24, respectively)