%

This need not imply that on average 50 % or more of altruistic acts were beneficial for the altruist in the ancestral environment ; if the benefits from helping the right person were very high it would be beneficial to err on the side of caution and usually be altruistic even if in most cases there were no benefits.

One study examined the physical health of mothers who volunteered over a 30-year period and found that 52 % of those who did not belong to a volunteer organization experienced a major illness while only 36 % of those who did volunteer experienced one.

A study on adults ages 55 + found that during the four-year study period, people who volunteered for two or more organizations had a 63 % lower likelihood of dying.

After controlling for prior health status, it was determined that volunteerism accounted for a 44 % reduction in mortality.

Microfilaments are at least 50 % of the cytoskeleton.

Thus #, $ and % were placed to correspond to 3, 4, and 5 in the adjacent column.

The total number of known amphibian species is approximately 7, 000, of which nearly 90 % are frogs.

The numbers of species cited above follow Frost and the total number of known amphibian species is approximately 7, 000, of which nearly 90 % are frogs.

91 % of marked individuals that were later recaptured were within a metre ( yard ) of their original daytime retreat under a log or rock.

This central charge would thus be approximately half the atomic weight ( though it was almost 25 % off the figure for the atomic number in gold ( Z = 79, A = 197 ), the single element from which Rutherford made his guess ).

Covering approximately 22 % of Earth's surface, the Atlantic is second in size to the Pacific.

Various shelves along the margins of the continents constitute about 11 % of the bottom topography with few deep channels cut across the continental rise.

Ethnically, three main groups have to be distinguished, each speaking a Bantu language: the Ovimbundu who represent 37 % of the population, the ( Ambundu ) with 25 %, and the Bakongo 13 %.

Roughly 26 % are followers of traditional forms of Protestantism ( Congregationals, Methodists, Baptista, Lutherans, Reformed ), but over the last decades there has in addition been a growth of Pentecostal communities and African Initiated Churches.

Blacks from Mali, Nigeria and Senegal are mostly Sunnite Muslims, but do not make up more than 1-2 % of the population.

The proprotion of children below the age of 15 in 2010 was 46. 6 %, 50. 9 % was between 15 and 65 years of age, while 2. 5 % was 65 years or older

In the latter, President José Eduardo dos Santos won the first round election with more than 49 % of the vote to Jonas Savimbi's 40 %.

Sometimes a significant amount of alcohol ( up to 27 % vol ) is added, as a carrier for the flavor, to provide " bite ".

Asterales contain about 14 % of eudicot diversity.

Starostin's ( 1991 ) lexicostatistical research claimed that the proposed Altaic groups shared about 15 – 20 % of potential cognates within a 110-word Swadesh-Yakhontov list ( e. g. Turkic – Mongolic 20 %, Turkic – Tungusic 18 %, Turkic – Korean 17 %, Mongolic – Tungusic 22 %, Mongolic – Korean 16 %, Tungusic – Korean 21 %).

After taxes and bequests to individuals, Nobel's will allocated 94 % of his total assets, 31, 225, 000 Swedish kronor, to establish the five Nobel Prizes.

Almost 80 % of the people currently residing in Anatolia are Turkish.

Argon is the third most common gas in the Earth's atmosphere, at 0. 93 % ( 9, 300 ppm ), making it approximately 23. 8 times as abundant as next most common atmospheric gas, carbon dioxide ( 390 ppm ), and more than 500 times as abundant as the next most common noble gas, neon ( 18 ppm ).