The information for this chart came from the U.S. Immigration Collection at Ancestry. You can find out where the majority of the Grebe families were living before they immigrated to the U.S and learn where to focus your search for foreign records.Immigration records can tell you an ancestor's name, ship name, port of departure, port of arrival, and destination.from the New York Passenger Lists.lick on a circle in the chart to view Grebe birth and death records. An unusually short lifespan might indicate that your ancestors lived in harsh conditions. A short lifespan might also indicate health problems that were once prevalent in your family.
It can be expressed as the ratio of output to inputs used in the production process, i.e. output per unit of input. When all outputs and inputs are included in the productivity measure it is called total productivity. Outputs and inputs are defined in the total productivity measure as their economic values.he production performance can be measured as an average or an absolute income. Expressing performance both in average (avg.) and absolute (abs.) quantities is helpful for understanding the welfare effects of production. For measurement of the average production performance, we use the known productivity ratio.
Productivity - National productivity. 1  In order to measure productivity of a nation or an industry, it is necessary to operationalize the same concept of productivity as in a production unit or a company, yet, the object of modelling is substantially wider and the information more aggregate.