The Conservative Party was one of the original parties in Janda's 1950-1962 ICPP study. The party continued throughout 1950-1990 in the Harmel-Janda study of party change in Denmark, Germany, the U.K. and U.S.

The essay on party politics in Denmark from 1950 to 1962 says:

Conservative parliamentary strength held steady at around 20 percent of the is until the 1970s, when new parties siphoned off support and dropped the party to under 10 percent of seats.

The essay on party politics in Denmark from 1963 to 2000 says:

After enjoying fairly steady legislative strength during the original ICPP period of roughly 20 percent of the seats, the KF's fortunes declined in the latter half of the 1970s, when new parties--the Progress Party and Center Democrats, both rightist, protest parties -- siphoned off support. Likewise, the party experienced leadership disputes in the mid-1970s, which hurt it electorally, as its legislative strength dropped precipitously. The KF's fortunes began to revive after Poul Schluter took over party leadership in 1974. The party returned to double-digit strength in the legislature in 1980, and in 1982 Schluter became Denmark's first Conservative prime minister since 1901. The party remained strong throughout the 1980s, but experienced another sharp drop in the 1998 elections, partially caused by the emergence of the rightist Danish People's Party (DF).

Consult the index to variables for annual scores of the party's issue orientation, organizational complexity, centralization of power, and coherence from 1950 through 1990.