Decade, an average of 6 per cent per year for the Second Development Decade and an average of 7 per cent per year for the Thlrd Development Decade. Corresponding rates actualLy achieved for the three development decades are 5'8, 5'4 and, to 1985, f.8 per cent, respectively. Economic growth in the economically more developed regions of the rdorld has aIso been substaneial-1y below expectations since the mid-Ig?os. Hence' except for the first Development Decade, there have been serious shortfalls in the area of economic arowth bet\teen professed aspirations and actual per for ma nce.A/ 40 /st9 Engl i sh Page 131 Table 45. cro\rrtb in the world economy, 1951-1985 a/ Economy groupannual rate o ross domeseic1961-1985 l96l-19J0 l9 7 r-19I0 1981-1985 WorId Developed markee economi es Centrally planned economies Developing market economi es Least developed economt es item: Target ra tesof grovrth for developingcountries as a group3,6 3,4 5-3 V 4.4 2.94.9 7;2 g/ 5.8 2.9 s!/3.6 3.2 5.4 5.4 3.13.9 1.8 . source: Department of rnternationar Economic and sociar Affairs of the unitedl'Iations secretariat. Rates of grorrth for the group or cintrarij pi"i""u economies refers to net material product. a/ Growth of cDp measured in l9Z5 prices and exchange rates. Data for centrally planned economies include estimates for China. y 196s_r985. S/1965-I970. Minimum rate of economic growth at the end of the first Deveropment !/ Decade.
**Analysis**
The text discusses the economic growth rates of different regions and economies, including the Second and Third Development Decades, and the actual rates achieved compared to the target rates. This suggests that the text is primarily focused on economic development, with a specific emphasis on growth rates and performance.

**Category**
Economic development