to your HTML Add class="sortable" to any table you'd like to make sortable Click on the headers to sort Thanks to many, many people for contributions and suggestions. Licenced as X11: http://www.kryogenix.org/code/browser/licence.html This basically means: do what you want with it. */ var stIsIE = /*@cc_on!@*/false; sorttable = { init: function() { // quit if this function has already been called if (arguments.callee.done) return; // flag this function so we don't do the same thing twice arguments.callee.done = true; // kill the timer if (_timer) clearInterval(_timer); if (!document.createElement || !document.getElementsByTagName) return; sorttable.DATE_RE = /^(\d\d?)[\/\.-](\d\d?)[\/\.-]((\d\d)?\d\d)$/; forEach(document.getElementsByTagName('table'), function(table) { if (table.className.search(/\bsortable\b/) != -1) { sorttable.makeSortable(table); } }); }, makeSortable: function(table) { if (table.getElementsByTagName('thead').length == 0) { // table doesn't have a tHead. Since it should have, create one and // put the first table row in it. the = document.createElement('thead'); the.appendChild(table.rows[0]); table.insertBefore(the,table.firstChild); } // Safari doesn't support table.tHead, sigh if (table.tHead == null) table.tHead = table.getElementsByTagName('thead')[0]; if (table.tHead.rows.length != 1) return; // can't cope with two header rows // Sorttable v1 put rows with a class of "sortbottom" at the bottom (as // "total" rows, for example). This is B&R, since what you're supposed // to do is put them in a tfoot. So, if there are sortbottom rows, // for backwards compatibility, move them to tfoot (creating it if needed). sortbottomrows = []; for (var i=0; i
We're going to wrap up our look at how the distribution of inflation-adjusted income has changed by age group from 1995 to 2005 this week, so we thought we'd start the grand finale by looking again at the generational demographics of our income earners in both years.
We'll first look at where our age groups fall among the United States' generational divisions, going by registered births, first for 1995:
And 10 years later:
So, right off the bat you can see that there's a strong generational component behind the number of potential income-earners in each age group as they advance through time, which is in good part reflected by the number of registered births within our age ranges. The following table adds up the birth numbers, and lists the number of income earners between $0 and $95,000 (in 2004 US dollars) for both 1995 and 2005:
Age Groups and Income Earners for 1995 and 2005 | |||||
---|---|---|---|---|---|
Birth Year Range | Age Group in 1994 | Age Group in 2004 | Registered Births | 1994 Income Earners | 2004 Income Earners |
1920-1929 | Age 65-74 | Over Age 75 | 28,582,000 | 18,320,102 | N/A |
1930-1939 | Age 55-64 | Age 65-74 | 24,374,000 | 18,468,644 | 17,958,307 |
1940-1949 | Age 45-54 | Age 55-64 | 31,666,000 | 26,741,030 | 25,410,246 |
1950-1959 | Age 35-44 | Age 45-54 | 40,530,000 | 37,690,015 | 35,723,625 |
1960-1969 | Age 25-34 | Age 35-44 | 38,808,409 | 37,991,817 | 36,606,962 |
1970-1979 | Age 15-24 | Age 25-34 | 33,308,985 | 26,725,555 | 33,986,844 |
1980-1989 | Under Age 15 | Age 15-24 | 37,507,107 | N/A | 27,243,902 |
Note: We highlighted the number of income earners for birth years between 1970 and 1979 (specifically, 2005's Age 25-34), since this figure is actually larger than the number of registered births for those years. That's very likely a lot of immigration inflating the numbers of the domestic U.S. workforce!
In addition to the provided data, the table above also indicates why we selected the years of 1995 and 2005 for our income distribution analysis. Since the Current Population Surveys released in March of these years really reflect data captured for 1994 and 2004, and given how the CPS provides its age group breakdowns beginning with Age 15-24 (and so on), these years made a nice natural fit with the decades for when people within each age group were born!
And you thought we were going completely at random!...
Labels: demographics
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