Table 1. Expansion of the European Union.

Expansion of the EU								Brexit	CC	PCC
1958	1973	1981	1986	1995	2004	2007	2013	2020
BEL	DNK	GRC	PRT	AUT	POL	BUL	HRV	-UK	ALB	BIH
FRA	IRE		ESP	FIN	CZE	ROU			MKD	KOS
DEU	UK			SWE	EST				MNE
ITA					HUN				SRB
LUX					LVA				TUR
NED					LTU
					SVK
					SVN
					CYP
					MLT

CC: candidate countries ; PCC: potential candidate countries. The development of the European Union and the possible future members.

Source: European Union and European Commission