Estimates are that 90 % of all commercially produced chemical products involve catalysts at some stage in the process of their manufacture.

Estimates of Esperanto speakers range from 10, 000 to 2, 000, 000 active or fluent speakers, as well as perhaps a thousand native speakers, that is, people who learned Esperanto from birth as one of their native languages.

Estimates of their running speed vary from 30 km / h ( 18 mph ) to 40 km / h ( 25 mph ), or even 50 km / h ( 30 mph ).

Estimates of the number of Arabs displaced from their original homes, villages, and neighborhoods during the period from December 1947 to January 1949 range from about 520, 000 to about 1, 000, 000 ; there is general consensus, however, that the actual number was more than 600, 000 and likely exceeded 700, 000.

Estimates suggest that over fifty million U. S. workers ( about 40 % of the working population ) could work from home at least part of the time, but in 2008 only 2. 5 million employees ( not including the self-employed ) considered their home their primary place of business.

Estimates for Filipino casualties reached one million, and Manila was extensively damaged when certain Japanese forces refused to vacate the city ( against their orders from the Japanese High Command ).

Estimates for Shenism and Taoism put their intermingled membership at 300 to 400 million, or 20 % to 30 % of the total population.

Estimates of their arms range from 3, 293 to 12, 000 rifles, 38 to 56 machine guns, and two to five anti-aircraft gun sections ; they also fielded four heavy artillery and mountain gun batteries ( 30 artillery pieces ) and the Pasha I formation.

" Estimates of the total number of American citizens who moved to Canada due to their opposition to the war range from 50, 000 to 125, 000 This exodus was " the largest politically motivated migration from the United States since the United Empire Loyalists moved north to oppose the American Revolution.

Estimates, as of 2011, place their numbers at 400, 000 to 600, 000.

Estimates suggest that increased protection has since enabled a recovery in their numbers and the status of the species was changed from Vulnerable to Near Threatened in the 2007 IUCN Red List.

Estimates of how many people speak Meänkieli vary since few people today speak Meänkieli as their only language.

Estimates for London's articulated buses put their involvement in accidents involving pedestrians at over five times the rate of all other buses, and over twice as high for accidents involving cyclists.

Estimates of Christians in China are difficult to obtain because of the numbers of Christians unwilling to reveal their beliefs, the hostility of the national government towards some Christian sects, and difficulties in obtaining accurate statistics on house churches.

Estimates on the number of Koreans who own more than a million US dollars in assets apart from their houses, and discarding all debts, are figured to be in the range of 65, 000 high net worth individuals ( HNWI ) according to Merrill Lynch research by June 16, 2004.

Estimates vary as to the number of people introduced to Scientology in this manner, officials of the WISE consulting company Singer Consultants estimate that 20 % of their clients end up taking courses in Scientology while Pat Lusey, co-founder of another WISE consulting group, Uptrends, has stated that 50 % of the clients of WISE consulting groups end up in Scientology ..

Estimates shows that their decimetric radio emissions ( DIM ) would be impossible to detect from the Earth.

Estimates of their population vary from 60, 000 to 200, 000.

Estimates suggest that over fifty million U. S. workers ( about 40 % of the working population ) could work from home at least part of the time, but in 2008 only 2. 5 million employees ( not including the self-employed ) considered their home their primary place of business.

Estimates of the civilian deaths is possibly as high as double the military dead ; no records were kept of their losses.

Estimates put combined worldwide album sales at approximately 400, 000.

" Estimates suggested Kid A was downloaded without payment millions of times before its worldwide release, and some expected weaker sales.

Estimates such as averages are often subjected to seasonal adjustment to remove weekly or seasonal-periodicity elements, for example, holiday-period sales and seasonal unemployment.

Estimates range from about 1 – 5 solar masses, with 2 – 3 solar masses being the generally accepted value.

Estimates of the number of people killed vary considerably, but are generally substantial.

Estimates made of the combined population of the Aboriginal people of Tasmania, before European arrival in Tasmania, are generally in the range of 3, 000 to 8, 000 people.

Estimates concerning the Chou Pei Suan Ching, generally considered to be the oldest of the mathematical classics, differ by almost a thousand years.

Estimates of the total number of Afrikaans-speakers range between 15 and 23 million.

Estimates of the number of people around the world who speak Bulgarian fluently range from about 9 million to 12 million.

Estimates of French losses range from 2, 000 to 5, 000, with a suggested median point of 3, 500 which includes over a thousand captured wounded and nearly 2, 000 killed, half of which died on Orient.

Estimates for the Ethiopian forces under Menelik range from a low of 73, 000 to a high of over 120, 000, outnumbering the Italians by an estimated five or six times.

Estimates of the number of major mass extinctions in the last 540 million years range from as few as five to more than twenty.

Estimates of the death toll by mid-December range from 83 reported by the Mutare City Council, based on a request for burial ground, to 140 estimated by the ( then ) opposition Movement for Democratic Change-Tsvangirai party.

Estimates range from about two million ( 2, 000, 000 ) years ago, during the time of Homo habilis, to as recently as forty thousand ( 40, 000 ) years ago, during the time of Cro-Magnon man.

Estimates for total sarin production by Nazi Germany range from 500 kg to 10 tons.

Estimates range as high as two million people, but more recent studies place that number closer to 200, 000.

Estimates for the number of Taoists worldwide range from twenty million and possibly to as many as 400 million in China alone.

Estimates of the energy of the blast range from 5 to as high as 30 megatons of TNT ( 21 – 130 PJ ), with the most likely — roughly equal to the United States ' Castle Bravo thermonuclear bomb tested on March 1, 1954 ; about 1, 000 times more powerful than the atomic bomb dropped on Hiroshima, Japan ; and about one-third the power of the Tsar Bomba, the largest nuclear weapon ever detonated.

Estimates of Ottoman civilian casualties range from 2, 000, 000 to 2, 150, 000.

Estimates of Al-Qaeda and Taliban casualties range from 100 to 1, 000, with U. S. commanders favoring the higher estimates and Afghan commanders favoring the lower estimates.

Estimates of Jewish survivors in Poland range from 40, 000-50, 000 to 100, 000-120, 000.

Estimates range up to 30, 000 speakers.

Estimates of the death toll range between 16, 000 and 40, 000.

Map of the Belgian Congo ( 1884 ) Estimates of the death toll range from two million to fifteen million.

" Estimates of its membership in 1944 range from 200, 000 to 600, 000, with the most common number being 400, 000 ; that figure would make it not only the largest Polish underground resistance movement but one of the three largest in Europe during World War II.

Estimates for total sarin production by Nazi Germany range from 500 kg to 10 tons.

Estimates of Indonesian deaths in fighting range from 45, 000 to 100, 000 and civilian casualties exceeded 25, 000 and may have been as high as 100, 000.

Estimates of the death toll range from 18 million to 45 million, with estimates by demographic specialists ranging from 18 million to 32. 5 million.

Estimates of its original mass range from 800 to 1600 times the mass of our Sun, implying still larger numbers of individual stars.