Question: How high of a percentage of paddy-to-rice conversion can a good mill achieve?
About the article "Rice", section "Harvesting, drying and milling".

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Unmilled rice, known as paddy (Indonesia and Malaysia: padi; Philippines, palay), is usually harvested when the grains have a moisture content of around 25%.
In most Asian countries, where rice is almost entirely the product of smallholder agriculture, harvesting is carried out manually, although there is a growing interest in mechanical harvesting.
Harvesting can be carried out by the farmers themselves, but is also frequently done by seasonal labour groups.
Harvesting is followed by threshing, either immediately or within a day or two.
Again, much threshing is still carried out by hand but there is an increasing use of mechanical threshers.
Subsequently, paddy needs to be dried to bring down the moisture content to no more than 20% for milling.
A familiar sight in several Asian countries is paddy laid out to dry along roads.
However, in most countries the bulk of drying of marketed paddy takes place in mills, with village-level drying being used for paddy to be consumed by farm families.
Mills either sun dry or use mechanical driers or both.
Drying has to be carried out quickly to avoid the formation of moulds.
Mills range from simple hullers, with a throughput of a couple of tonnes a day, that simply remove the outer husk, to enormous operations that can process 4,000 tonnes a day and produce highly polished rice.
A good mill can achieve a paddy-to-rice conversion rate of up to 72% but smaller, inefficient mills often struggle to achieve 60%.
These smaller mills often do not buy paddy and sell rice but only service farmers who want to mill their paddy for their own consumption.
Thiruvannamalai District is known for its two major businesses, agriculture and silk saree weaving.
Rice cultivation and processing is one of the biggest businesses in this district.
112013 hectares of paddy cultivation is irrigated by 1965 lakes and 18 reservoirs and small dams.
It has 18 regulated markets through which the farmers sell their agri products directly to the government.
Through these regulated markets, 271411 metric tonnes of paddy harvested in 2007.
There are lot of rice mills to process paddy found throughout the district.
The modern rice mill near Cheyyar is the biggest government owned mill and Aarani has around 278 rice mills.
Kalambur is known for a variety of rice called Kalambur Ponni rice. 
 Paddy field, a type of cultivated land Paddy (unmilled rice) Paddy mail, a train for construction workers Paddy Whiskey, a liquor Paddy, slang word for a tantrum or fit  
Rice is the main export of Thailand, especially the white jasmine rice 105 (Dok Mali 105).
Thailand has a large number of rice varieties, 3,500 kinds with different characters, and 5 kinds of wild rice cultivates.
In each region of the country there are different rice seed types.
Their use depends on weather, atmosphere, and topography.
The northern region has both low lands and high lands.
The farmers’ usual crop is non-glutinous rice such as Niew Sun Pah Tong rice seeds.
This rice is naturally protected from leaf disease, and the paddy has a brown color.
The northeastern region has a large area, where farmers can cultivate about 36 million square meters of rice.
Although most of them are plains and dry areas, they can grow the white jasmine rice 105 which is the most famous Thai rice.
The white jasmine rice was developed in Chonburi province first and after that it was grown in many areas in the country but the rice from this region has a high quality, because it's softer, whiter and more fragrant.
This rice can resist drought, acidic soil, and alkaline soil.
The central region is mostly composed of plains.
Most farmers grow Jao rice.
For example the Pathum Thani 1 rice which has qualities similar to the white jasmine 105 rice.
Their paddy has the color of thatch and their cooked rice has fragrant grains also.
In the southern region, most farmers transplant around boundaries to the flood of plain or plain between mountains.
Farming is the region is slower than other regions because the rainy season comes late.
The popular rice varieties in this area are the Leb Nok Pattani seeds, a type of Jao rice.
Their paddy has the color of thatch and it can be processed to make noodles. 
The majority of the senior inhabitants are farmers; main crops are rubber, paddy (rice), coconut, and black pepper.
A good percentage of young men work in cities of North India and Middle East.
The money sent back home by these emigrants brings prosperity to the village.
Some of the problems the village faces are poverty, lack of industrial work, and alcoholism among men.