Summary Reports from ESRL/GMD are available going back to its origin as the Geophysical Monitoring for Climatic Change (GMCC), part of the NOAA Environmental Research Laboratories in 1972.
Click on a document icon to download the report. These documents are in PDF 
format.
Report # 28, 2004-2013
Report # 27, 2002-2003
Report # 26, 2000-2001
Report # 25, 1998-1999
Report # 24, 1996-1997
Report # 23, 1994-1995
Report # 22, 1993
Report # 21, 1992
Report # 20, 1991
Report # 19, 1990
Report # 18, 1989
Report # 17, 1988
Report # 16, 1987
Report # 15, 1986
Report # 14, 1985
Report # 13, 1984
Report # 12, 1983
Report # 11, 1982
Report # 10, 1981
Report # 9, 1980
Report # 8, 1979
Report # 7, 1978
Report # 6, 1977
Report # 5, 1976
Report # 4, 1975
Report # 3, 1974
Report # 2, 1973
Report # 1, 1972