year mo    data_type region extent   area
1978 11      Goddard      S  16.40  11.56
1979 11      Goddard      S  15.87  11.20
1980 11      Goddard      S  16.71  11.72
1981 11      Goddard      S  16.36  11.97
1982 11      Goddard      S  16.02  11.15
1983 11      Goddard      S  16.31  11.45
1984 11      Goddard      S  16.58  11.96
1985 11      Goddard      S  16.41  12.24
1986 11      Goddard      S  15.54  10.75
1987 11      Goddard      S  15.82  11.12
1988 11      Goddard      S  16.61  12.19
1989 11      Goddard      S  16.08  11.32
1990 11      Goddard      S  16.01  11.24
1991 11      Goddard      S  16.05  11.35
1992 11      Goddard      S  16.26  11.09
1993 11      Goddard      S  16.40  11.72
1994 11      Goddard      S  16.41  11.65
1995 11      Goddard      S  15.97  11.38
1996 11      Goddard      S  16.36  11.14
1997 11      Goddard      S  16.25  11.49
1998 11      Goddard      S  16.64  11.76
1999 11      Goddard      S  16.32  11.40
2000 11      Goddard      S  16.23  11.71
2001 11      Goddard      S  15.76  10.88
2002 11      Goddard      S  15.91  11.55
2003 11      Goddard      S  16.53  11.36
2004 11      Goddard      S  16.57  11.64
2005 11      Goddard      S  16.78  11.69
2006 11      Goddard      S  16.76  11.50
2007 11      Goddard      S  16.24  12.03
2008 11      Goddard      S  16.59  11.89
2009 11      Goddard      S  16.37  11.70
2010 11      Goddard      S  16.94  11.83
2011 11      NRTSI-G      S  16.15  11.56

 Important Note: 

 When insufficient satellite data is available to process the area and extent
 values, the data is flagged as -9999. For more information see Processing
 Steps, Monthly Mean Ice Concentration in the documentation -
 http://nsidc.org/data/docs/noaa/g02135_seaice_index/index.html#processingstep.