The projections, released on Monday, are based on a compilation of national opinion polls from the EU's 27 member countries on the presumption that the number of seats in the next parliament will drop from 751 in the current parliament to 705 in a post-Brexit parliament.

The European People's Party (EPP) is projected to continue as the largest group, forecast to win 183 seats, followed by the Socialists and Democrats (S&D) with 135 and the liberals (ALDE) with 75 seats.

In Slovenia, the SDS (EPP) and the LMŠ (ALDE) are projected to win three seats each, with 26.6% and 25.6% of the vote, respectively.

The Social Democrats (SD/S&D) and the Left (European Left GUE/NGL) are forecast to win one seat each, with 14.7% and 12.1% of the vote, respectively.

The projection for Slovenia is based on an opinion poll carried out over the phone and online from 15 to 24 January by pollster Mediana among 707 citizens and released by commercial broadcaster POP TV on 27 January.

Releasing the first "camembert", as the pie projecting the distribution of seats is called in Brussels, officials at the European Parliament stressed that the projections were based on the current situation, that is on surveys conducted at the beginning of February.

The parliament will release updated projections every two weeks until the end of April and then weekly in May.

On 26 May the first exit poll results from the countries that have already held the election will be released at 6 PM, with the results updated every hour until first partial results for all member states are available.