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THE JOURNAL OF ECONOMIC SCIENCES: THEORY AND   PRACTICE















                         Figure 2. Comparison of Seasonal and Annual Precipitation Patterns, Amarillo, TX, 1991-2009

                            Annual          May-Sep          Nov-Mar           Nov-May
                        Low  Ave   High     Low     Ave   High      Low   Ave  High       Low   Ave  High
               1991
               1992
               1993
               1994
               1995
               1996
               1997
               1998
               1999
               2000
               2001
               2002
               2003
               2004
               2005
               2006
               2007
               2008
               2009



                          Manuscript received: 14 September 2012












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