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<br />-I <br />I <br />I <br />I <br /> <br />C> <br /> <br />... <br />~ ~") <br />~ <br />O':l <br /> <br />...) <br /> <br />output in 1965. This group of industries stood out particularly in the <br />Lower Main Stem Subregion, which points up the importance of service <br />oriented industries in that subregion, notably in the Las Vegas, Nevada <br />area. Manufacturing also was relatively important in the base period, <br />particularly in the Gila Subregion. These two types of industries are <br />projected to show by far the most rapid growth throughout the projection <br />time frame. Hence, they will comprise an even larger part of the economy <br />of the three subregions in 2020 than currently. <br /> <br />Value added (defined in the Glossary) by the five major types of <br />industries in the Region is projected to show approximately the same <br />relative growth over the projection time frame as total gross output. <br />Table 1.1. The noncommodity'producing sectors and manufacturing again <br />stand out, both in terms of their relative importance in the base period <br />and in terms of their relative growth over the projection period. Of the <br />value added by the five types of producing industries in 2020, the non- <br />commodity producing sectors are projected to contribute 90 percent in the <br />Lower Main Stem, 64 p~rcent in the Little Colorado, and 58 percent in the <br />Gila Subregion. Comparable percentage figures for the manufacturing sec- <br />tors are,: 9 percent in the Lower Main Stem, 25 percent in the Little <br />Colorado, and 38 percent in the Gila Subregion. Hence, it is evident <br />that with the OBE-ERS projections, the major part of the value added to <br />the economy by the producing industries in 2020 will be derived from the <br />noncommodity and manufacturing sectors. <br /> <br />Estimated gross regional product (defined in the Glossary) totaled <br />$6 billion in 1965, and is projected to increase to $107 billion in 2020, <br />an increase of nearly 18 times. Table 1.1. The most rapid growth is pro- <br />jected fOr the Lower Main Stem Subregion. As a result, the Lower Main <br />Stem Subregion is projected to produce 28 percent of the regional GRP in <br />2020, cotltpared with 21 percent in 19.65. The relative increase in the <br />Lower Main Stem will be taken from the Gila Subregion where the propor- <br />tion of the regional GRP produced is projected to decline to 68 percent <br />in 2020, compared with 75 percent in 1965. <br /> <br />The irrigated harvested acreage (defined 'in the Glossary) in the <br />Region is projected to increase from 1,225,600 acres in 1965 to <br />1,450,400 acres in 2020, an 18 percent increase. Table 1.1. The Lower <br />Main Stem Subregion is projected to have a 42 percent increase over the <br />55-year projection period, substantially higher than the 12. percent in- <br />crease iri the other two subregions. The proportion of the regional <br />acreage in the Lower Main Stem Subregion is projected to increase, there- <br />fore, to 24 percent compared with 20 percent in 1965. The offsetting <br />proportional decline is expected to occur in the Gila Subregion where <br />the proportion of the regional acreage is expected to decrease from 79 <br />percent in 1965 to 75 percent in 2020. <br /> <br />The largest relative increase in acreage is projected to take place <br />in food crops, primarily in vegetables and citrus. The Lower Main Stem <br /> <br />v <br /> <br />