/usr/share/gretl/data/data3-3.gdt is in gretl-data 2017d-3build1.
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<!DOCTYPE gretldata SYSTEM "gretldata.dtd">
<gretldata name="data3-3" frequency="1" startobs="1960" endobs="1993" type="time-series">
<description>
DATA3-3: Annual data on U.S. Patents and R&D expenditures
YEAR = 1960-93, 34 observations.
PATENTS = Number of patent applications filed, in thousands
(Range 84.5 - 189.4)
Source: Statistical Abstract of the U.S., various years.
R_D = R&D expenditures, billions of 1992 dollars obtained as the
ratio of expenditure on current dollars divided by the GDP price
deflator. (Range 57.94 - 166.7)
Source for R&D expenditures, 1995 Statistical Abstract
of the U.S., Table 979, Page 611, and earlier issues
Source for GDP deflator, 1996 Economic Report of the President,
Table B-3, Page 284.
</description>
<variables count="3">
<variable name="YEAR"/>
<variable name="PATENTS"
label="Number of patent applications filed, in thousands"/>
<variable name="R_D"
label="R&D expenditures, billions of 1992 dollars"/>
</variables>
<observations count="34" labels="false">
<obs>1960 84.5 57.94 </obs>
<obs>1961 88.2 60.59 </obs>
<obs>1962 90.4 64.44 </obs>
<obs>1963 91.1 70.66 </obs>
<obs>1964 93.2 76.83 </obs>
<obs>1965 100.4 80.00 </obs>
<obs>1966 93.5 84.82 </obs>
<obs>1967 93.0 86.84 </obs>
<obs>1968 98.7 88.81 </obs>
<obs>1969 104.4 88.28 </obs>
<obs>1970 109.4 85.29 </obs>
<obs>1971 111.1 83.18 </obs>
<obs>1972 105.3 85.07 </obs>
<obs>1973 109.6 86.72 </obs>
<obs>1974 107.4 85.45 </obs>
<obs>1975 108.0 83.41 </obs>
<obs>1976 110.0 87.44 </obs>
<obs>1977 109.0 90.11 </obs>
<obs>1978 109.3 94.50 </obs>
<obs>1979 108.9 99.28 </obs>
<obs>1980 113.0 103.64 </obs>
<obs>1981 114.5 108.77 </obs>
<obs>1982 118.4 113.96 </obs>
<obs>1983 112.4 121.72 </obs>
<obs>1984 120.6 133.33 </obs>
<obs>1985 127.1 144.78 </obs>
<obs>1986 133.0 148.39 </obs>
<obs>1987 139.8 150.90 </obs>
<obs>1988 151.9 154.36 </obs>
<obs>1989 166.3 157.19 </obs>
<obs>1990 176.7 161.86 </obs>
<obs>1991 178.4 164.54 </obs>
<obs>1992 187.2 166.70 </obs>
<obs>1993 189.4 165.20 </obs>
</observations>
</gretldata>
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