Table 2. Availability of health insurance claims data for trend analyses of vaccination coverage (VC) in cross-sections of birth cohorts from 2004 up to 2009 at 24 and 36 mo by federal state and Association of Statutory Health Insurance Physicians (ASHIP).

		VC at 24 mo						VC at 36 mo
Federal state	ASHIP	2004	2005	2006	2007	2008	2009	2004	2005	2006	2007	2008
Baden-Württemberg	Baden-Württemberg					+	+					+
Bavaria	Bavaria				+	+	+				+	+
Berlin	Berlin						+
Brandenburg	Brandenburg	+	+	+	+	+	+	+	+	+	+	+
Bremen	Bremen
Hamburg	Hamburg	+	+	+	+	+	+	+	+	+	+	+
Hesse	Hesse			+
Lower Saxony	Lower Saxony	+	+	+	+	+	+	+	+	+	+	+
Mecklenburg-West Pomerania	Mecklenburg-West Pomerania	+	+	+	+	+	+	+	+	+	+	+
North Rhine-Westphalia	North Rhine	+	+	+	+	+	+	+	+	+	+	+
	Westphalia-Lippe	+	+	+	+	+	+	+	+	+	+	+
Rhineland-Palatinate	Rhineland-Palatinate				+	+	+				+	+
Saarland	Saarland		+	+	+	+	+		+	+	+	+
Saxony	Saxony	+	+	+	+	+	+	+	+	+	+	+
Saxony-Anhalt	Saxony-Anhalt	+	+	+	+	+	+	+	+	+	+	+
Schleswig-Holstein	Schleswig-Holstein	+	+	+	+	+	+	+	+	+	+	+
Thuringia	Thuringia		+	+	+	+	+		+	+	+	+
	Total:	9	11	12	13	14	15	9	11	11	13	14