This timeline shows a graph from 1964 to 1990 of Tanzania. No data until 1963. Number of actual observations by date: 15.
Source name:
World Development Indicators
Source organization:
World Intellectual Property Organization (WIPO), WIPO Patent Report: Statistics on Worldwide Patent Activity. The International Bureau of WIPO assumes no responsibility with respect to the transformation of these data.
Categories, topics:
Science & Technology
Last updated:
apr 23, 2017
Indicators value changes by year
Meaning:
55.333
Minimum:
23.0
jan 1, 1990
Maximum:
88.0
jan 1, 1981
At the date of observation
Value
Absolute change
Change from the previous value
jan 1, 1964
58.0
+58.0
0.0%
jan 1, 1965
76.0
+18.0
31.03%
jan 1, 1966
65.0
-11.0
-14.47%
jan 1, 1968
86.0
+21.0
32.31%
jan 1, 1973
45.0
-41.0
-47.67%
jan 1, 1975
65.0
+20.0
44.44%
jan 1, 1977
57.0
-8.0
-12.31%
jan 1, 1978
71.0
+14.0
24.56%
jan 1, 1980
42.0
-29.0
-40.85%
jan 1, 1981
88.0
+46.0
109.52%
jan 1, 1983
30.0
-58.0
-65.91%
jan 1, 1984
57.0
+27.0
90.0%
jan 1, 1986
30.0
-27.0
-47.37%
jan 1, 1989
37.0
+7.0
23.33%
jan 1, 1990
23.0
-14.0
-37.84%
Ranking of countries by current statistics by years
