The number of goats required to control brush is subjective. It largely depends on how large an area you want controlled, what type(s) of brush you are controlling and how quickly you want the area controlled. An unwritten estimate of the number of goats needed per acre is 3 to 4 full sized goats.
Age-adjusted prevalence of physician-diagnosed diabetes mellitus in adults â¥20 years of age by race/ethnicity and sex Copyright Â© American Heart Association, Inc. All rights reserved. Mozaffarian D et al. Circulation. 2015;131:e29-e322 National Health and Nutrition Examination Survey: 2009â2012.
There are various studies which directly report incidence of depression by age for particular countries. For example, there is some official US data here: QuickStats: Prevalence of Current Depression* Among Persons Aged â¥12 Years, by Age Group and Sex - United States, National Health and Nutrition Examination Survey, 2007-2010 . It shows that middle age is the most susceptible age. Another US source ( Facts & Statistics) claims that itâs specifically early middle age that is most susceptible: the median age for onset of a major depressive disorder is 32.5. The Wikipedia page Epidemiology of depression claims that the distribution is bimodal, with one peak in the 30s age group and another in the 50s.