The following table contains the contributors of the data actually used in the global analysis for the Bulletin.

CO₂

Station Name	Country/Territory	GAW ID	Contributor
Alert	CANADA	ALT	NOAA/GMD
Amsterdam Island	FRANCE	AMS	LSCE
Ascension Island	UNITED KINGDOM	ASC	NOAA/GMD
Assekrem	ALGERIA	ASK	NOAA/GMD
Baltic Sea	POLAND	BAL	NOAA/GMD
Baring Head	NEW ZEALAND	BAR	NIWA
Barrow	UNITED STATES	BRW	NOAA/GMD
Bering Island	RUSSIAN FEDERATION	BER	MGO
Brotjacklriegel	GERMANY	BRT	UBA
Cape Ferguson	AUSTRALIA	CFA	CSIRO
Cape Grim	AUSTRALIA	CGO	"BoM CSIRO, NOAA/GMD"
Cape Kumukahi	UNITED STATES	KUM	NOAA/GMD
Cape Meares	UNITED STATES	CMO	NOAA/GMD
Cape Point	SOUTH AFRICA	CPO	SAWS
Casey Station	ANTARCTICA	CYA	CSIRO
Christmas Island	KIRIBATI	CHR	NOAA/GMD
Cold Bay	UNITED STATES	CBA	NOAA/GMD
Crozet	FRANCE	CRZ	NOAA/GMD
Dwejra Point	MALTA	GOZ	NOAA/GMD
Easter Island	CHILE	EIC	NOAA/GMD
Estevan Point	CANADA	ESP	CSIRO
Gobabeb	NAMIBIA	NMB	NOAA/GMD
Gosan	KOREA REPUBLIC OF	GSN	METRI
Grifton	UNITED STATES	ITN	NOAA/GMD
Guam	UNITED STATES	GMI	NOAA/GMD
Halley Bay	ANTARCTICA	HBA	NOAA/GMD
Heimaey	ICELAND	ICE	NOAA/GMD
Izaña	SPAIN	IZA	INM
Jubany	ANTARCTICA	JBN	ISAC IAA
Key Biscayne	UNITED STATES	KEY	NOAA/GMD
Kotelny Island	RUSSIAN FEDERATION	KOT	MGO
Kyzylcha	UZBEKISTAN	KYZ	MGO
Lampedusa	ITALY	LMP	ENEA
Mace Head	IRELAND	MHD	"NOAA/GMD, LSCE"
Macquarie Island	AUSTRALIA	MQA	CSIRO
Mahe Island	SEYCHELLES	SEY	NOAA/GMD
Mauna Loa	UNITED STATES	MLO	NOAA/GMD
Mawson	ANTARCTICA	MAA	CSIRO
Minamitorishima	JAPAN	MNM	JMA
Monte Cimone	ITALY	CMN	IAFMS
Mould Bay	CANADA	MBC	NOAA/GMD
Mt. Dodaira	JAPAN	DDR	Saitama Prefecture
Mt. Waliguan	CHINA	WLG	"NOAA/GMD, CAMS"
Niwot Ridge	UNITED STATES	NWR	NOAA/GMD
Ocean Station "M"	NORWAY	STM	NOAA/GMD
Ocean Station Charlie	RUSSIAN FEDERATION	STC	MGO
Olympic Peninsula	UNITED STATES	OPW	NOAA/GMD
Pacific Ocean	UNITED STATES	POC	NOAA/GMD
Pallas-Sammaltunturi	FINLAND	PAL	FMI
Palmer Station	ANTARCTICA	PSA	NOAA/GMD
Park Falls	UNITED STATES	LEF	NOAA/GMD
Plateau Assy	KAZAKHSTAN	KZM	NOAA/GMD
Plateau Rosa	ITALY	PRS	CESI RICERCA
Point Arena	UNITED STATES	PTA	NOAA/GMD
Ragged Point	BARBADOS	RPB	NOAA/GMD
Ryori	JAPAN	RYO	JMA
Sand Island	UNITED STATES	MID	NOAA/GMD
Sary Taukum	KAZAKHSTAN	KZD	NOAA/GMD
Schauinsland	GERMANY	SSL	UBA
Sede Boker	ISRAEL	WIS	NOAA/GMD
Shemya Island	UNITED STATES	SHM	NOAA/GMD
Shetland	UNITED KINGDOM	SIS	CSIRO
Sonnblick	AUSTRIA	SNB	UBA
South China Sea	UNITED STATES	SCS	NOAA/GMD
South Pole	ANTARCTICA	SPO	NOAA/GMD
Southern Great Plains	UNITED STATES	SGP	NOAA/GMD
St. Croix	UNITED STATES	AVI	NOAA/GMD
St. David's Head	UNITED KINGDOM	BME	NOAA/GMD
Summit	GREENLAND	SUM	NOAA/GMD
Syowa Station	ANTARCTICA	SYO	NOAA/GMD
Tae-ahn Peninsula	KOREA REPUBLIC OF	TAP	NOAA/GMD
Tenerife	SPAIN	IZO	NOAA/GMD
Terceira Island	PORTUGAL	AZR	NOAA/GMD
Teriberka	RUSSIAN FEDERATION	TER	MGO
Tierra del Fuego	ARGENTINA	TDF	NOAA/GMD
Trinidad Head	UNITED STATES	THD	NOAA/GMD
Tudor Hill	UNITED KINGDOM	BMW	NOAA/GMD
Tutuila	UNITED STATES	SMO	NOAA/GMD
Ulaan Uul	MONGOLIA	UUM	NOAA/GMD
Wendover	UNITED STATES	UTA	NOAA/GMD
Yonagunijima	JAPAN	YON	JMA
Zeppelinfjellet	NORWAY	ZEP	"ITM, NOAA/GMD"
Zugspitze / Schneefernerhaus	GERMANY	SFH	UBA
Zugspitze	GERMANY	ZGP	UBA

CH₄

Station Name	Country/Territory	GAW ID	Contributor
Alert	CANADA	ALT	NOAA/GMD
Amsterdam Island	FRANCE	AMS	NOAA/GMD
Ascension Island	UNITED KINGDOM	ASC	NOAA/GMD
Assekrem	ALGERIA	ASK	NOAA/GMD
Baltic Sea	POLAND	BAL	NOAA/GMD
Barrow	UNITED STATES	BRW	NOAA/GMD
Cape Ferguson	AUSTRALIA	CFA	CSIRO
Cape Grim	AUSTRALIA	CGO	NOAA/GMD
Cape Kumukahi	UNITED STATES	KUM	NOAA/GMD
Cape Meares	UNITED STATES	CMO	NOAA/GMD
Cape Ochi-ishi	JAPAN	COI	NIES
Cape Point	SOUTH AFRICA	CPO	SAWS
Casey Station	ANTARCTICA	CYA	CSIRO
Christmas Island	KIRIBATI	CHR	NOAA/GMD
Cold Bay	UNITED STATES	CBA	NOAA/GMD
Crozet	FRANCE	CRZ	NOAA/GMD
Deuselbach	GERMANY	DEU	UBA
Dwejra Point	MALTA	GOZ	NOAA/GMD
Easter Island	CHILE	EIC	NOAA/GMD
Estevan Point	CANADA	ESP	CSIRO
Grifton	UNITED STATES	ITN	NOAA/GMD
Guam	UNITED STATES	GMI	NOAA/GMD
Halley Bay	ANTARCTICA	HBA	NOAA/GMD
Hateruma	JAPAN	HAT	NIES
Hegyhatsal	HUNGARY	HUN	NOAA/GMD
Heimaey	ICELAND	ICE	NOAA/GMD
Izaña	SPAIN	IZA	INM
Key Biscayne	UNITED STATES	KEY	NOAA/GMD
Kosetice	CZECH REPUBLIC	KOS	CHMI
Lampedusa	ITALY	LMP	ENEA
Mace Head	IRELAND	MHD	NOAA/GMD
Macquarie Island	AUSTRALIA	MQA	CSIRO
Mahe Island	SEYCHELLES	SEY	NOAA/GMD
Mauna Loa	UNITED STATES	MLO	NOAA/GMD
Mawson	ANTARCTICA	MAA	CSIRO
McMurdo Station	ANTARCTICA	MCM	NOAA/GMD
Minamitorishima	JAPAN	MNM	JMA
Mould Bay	CANADA	MBC	NOAA/GMD
Mt. Waliguan	CHINA	WLG	NOAA/GMD
Neuglobsow	GERMANY	NGL	UBA
Niwot Ridge	UNITED STATES	NWR	NOAA/GMD
Ny-Alesund	NORWAY	ZEP	NOAA/GMD
Ocean Station "M"	NORWAY	STM	NOAA/GMD
Olympic Peninsula	UNITED STATES	OPW	NOAA/GMD
Pacific Ocean	UNITED STATES	POC	NOAA/GMD
Palmer Station	ANTARCTICA	PSA	NOAA/GMD
Park Falls	UNITED STATES	LEF	NOAA/GMD
Plateau Assy	KAZAKHSTAN	KZM	NOAA/GMD
Plateau Rosa	ITALY	PRS	CESI RICERCA
Point Arena	UNITED STATES	PTA	NOAA/GMD
Ragged Point	BARBADOS	RPB	NOAA/GMD
Ryori	JAPAN	RYO	JMA
Sand Island	UNITED STATES	MID	NOAA/GMD
Sary Taukum	KAZAKHSTAN	KZD	NOAA/GMD
Schauinsland	GERMANY	SSL	UBA
Sede Boker	ISRAEL	WIS	NOAA/GMD
Shemya Island	UNITED STATES	SHM	NOAA/GMD
Shetland	UNITED KINGDOM	SIS	CSIRO
South China Sea	UNITED STATES	SCS	NOAA/GMD
South Pole	ANTARCTICA	SPO	NOAA/GMD
Southern Great Plains	UNITED STATES	SGP	NOAA/GMD
St. Croix	UNITED STATES	AVI	NOAA/GMD
St. David's Head	UNITED KINGDOM	BME	NOAA/GMD
Syowa Station	ANTARCTICA	SYO	NOAA/GMD
Tae-ahn Peninsula	KOREA REPUBLIC OF	TAP	NOAA/GMD
Tenerife	SPAIN	IZO	NOAA/GMD
Terceira Island	PORTUGAL	AZR	NOAA/GMD
Teriberka	RUSSIAN FEDERATION	TER	MGO
Trinidad Head	UNITED STATES	THD	AGAGE
Tsukuba	JAPAN	TKB	MRI
Tudor Hill	UNITED KINGDOM	BMW	NOAA/GMD
Tutuila	UNITED STATES	SMO	NOAA/GMD
Ulaan Uul	MONGOLIA	UUM	NOAA/GMD
Wendover	UNITED STATES	UTA	NOAA/GMD
Yonagunijima	JAPAN	YON	JMA
Zingst	GERMANY	ZGT	UBA
Zugspitze / Schneefernerhaus	GERMANY	SFH	UBA
Zugspitze	GERMANY	ZGP	UBA

N₂O

Station Name	Country/Territory	GAW ID	Contributor
Adrigole	IRELAND	ADR	AGAGE
Alert	CANADA	ALT	NOAA/GMD
Barrow	UNITED STATES	BRW	NOAA/GMD
Cape Grim	AUSTRALIA	CGO	AGAGE
Cape Kumukahi	UNITED STATES	KUM	NOAA/GMD
Cape Matatula	UNITED STATES	SMO	"AGAGE, NOAA/GMD"
Cape Meares	UNITED STATES	CMO	AGAGE
Cape Point	SOUTH AFRICA	CPO	SAWS
Mace Head	IRELAND	MHD	AGAGE
Mauna Loa	UNITED STATES	MLO	NOAA/GMD
Niwot Ridge	UNITED STATES	NWR	NOAA/GMD
Ragged Point	BARBADOS	RPB	AGAGE
Ryori	JAPAN	RYO	JMA
South Pole	ANTARCTICA	SPO	NOAA/GMD
Trinidad Head	UNITED STATES	THD	AGAGE