Station	Short name	1992	1993	1994	1995	1996	1997	1998	1999	2000	2001	2002	2003	2004	2005	2006	2007	2008	2009	2010	2011	2012
Alice Springs	ASP				X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	
Barrow	BAR	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X		
Bermuda	BER	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X		
Billings	BIL		X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X			
Bondville	BON				X	X	X	X	X	X	X	X	X	X	X	X	X	X	X			
Boulder, SURFRAD	BOS				X	X	X	X	X	X	X	X	X	X	X	X	X	X	X			
Boulder	BOU	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X		
Brasilia 	BRB															X	X					
Cabauw	CAB														X	X	X	X	X	X	X	X
Camborne	CAM										X	X	X	X	X	X	X					
Carpentras	CAR					X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	
Chesapeake Light	CLH									X	X	X	X	X	X	X	X	X	X	X	X	X
Cener	CNR																		X	X	X	X
Cocos Island	COC													X	X	X	X	X	X	X	X	
De Aar	DAA									X	X	X	X	X	X							
Darwin	DAR											X	X	X	X	X	X					
Desert Rock	DRA							X	X	X	X	X	X	X	X	X	X	X	X			
Concordia Station	DOM															X	X	X	X	X		
Darwin Met Office	DWN																	X	X	X	X	
S. Great Plains	E13			X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X			
Florianopolis	FLO			X	X	X	X	X	X	X	X	X	X	X	X							
Fort Peck	FPE				X	X	X	X	X	X	X	X	X	X	X	X	X	X	X			
Fukuoka	FUA																			X	X	X
Goodwin Creek	GCR				X	X	X	X	X	X	X	X	X	X	X	X	X	X	X			
Neumayer Station	GVN	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	
Ilorin	ILO	X	X	X	X	X	X	X	X	X	X	X	X	X	X							
Ishigakijima	ISH																			X	X	X
Izana	IZA																		X	X	X	X
Kwajalein	KWA	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X		
Lauder	LAU								X	X	X	X	X	X	X	X	X	X	X	X	X	
Lerwick	LER										X	X	X	X	X	X	X					
Lindenberg	LIN			X	X	X	X	X	X	X	X	X	X	X	X	X						
Momote	MAN					X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
Minamitorishima	MNM																			X	X	X
Nauru Island	NAU							X	X	X	X	X	X	X	X	X	X					
Ny-&Aring%lesund	NYA	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	
Palaiseau Cedex	PAL												X	X	X	X	X					
Payerne	PAY	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X			
Rock Springs	PSU							X	X	X	X	X	X	X	X	X	X	X	X			
Petrolina	PTR															X	X					
Regina	REG				X	X	X	X	X	X	X	X	X	X	X	X	X					
Rolim de Moura	RLM																X					
Sapporo	SAP																			X	X	X
Sede Boqer	SBO												X	X	X	X	X	X	X	X	X	
S&atilde%o Martinho da Serra	SMS															X	X	X				
Solar Village	SOV							X	X	X	X	X										
South Pole	SPO	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X		
Syowa	SYO			X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	
Sioux Falls	SXF												X	X	X	X	X	X	X			
Tamanrasset	TAM									X	X	X	X	X	X	X	X	X	X	X	X	X
Tateno	TAT					X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X	X
Tiksi	TIK																			X	X	
Toravere	TOR								X	X	X	X	X	X	X	X	X	X	X	X	X	X
Xianghe	XIA														X	X	X	X