The Heinz Center's State of the Nation's Ecosystems
ecosystem: Core National Indicators
indicator Name: Plant Growth Index: eastern regions
page # in printed report: 56
location on page: Lower left
data source: U.S. Geological Survey; Multi-Resolution Land Characterization Consortium. Coverage: Lower 48 states
notes: please see technical notes for further details on accessing these data from their original source; this data table comes from a specific graphic in The State of the Nation's Ecosystems report (www.heinzctr.org/)

units: index--a value of 1.0 equals the 15-year average from 1989-2004
  Northeast/Mid-Atlantic Southeast Midwest U.S. (lower 48)
1989 1.09 1.10 1.02 1.10
1990 0.87 0.97 0.87 0.91
1991 0.89 0.87 0.89 0.87
1992 1.06 1.20 1.11 1.11
1993 1.20 1.01 1.21 1.25
1994 #N/A #N/A #N/A #N/A
1995 1.00 0.97 0.98 0.95
1996 0.99 0.96 1.01 0.92
1997 0.92 0.90 0.98 0.98
1998 0.87 0.86 0.91 0.95
1999 0.86 0.90 0.93 0.95
2000 0.93 0.87 1.02 0.94
2001 1.25 1.40 1.23 1.16
2002 1.10 0.99 0.85 0.88
2003 1.07 1.04 0.97 0.97
2004 1.14 1.10 1.03 1.00