Occurrence of Attributes in Original Text
The text related to the cultural heritage 'Ombilin Coal Mining Heritage of Sawahlunto' has mentioned 'Tonnes' in the following places:
| Occurrence Sentence | Text Source |
|---|---|
| In the pre-independence period, coal production peaked in 1930, at more than 620,000xc2xa0tonnes a year. | WIKI |
| Production peaked in 1976 at 1,201,846xc2xa0tonnes per year. | WIKI |
| [6] By 2008, the mine had estimated reserves about 90.3xc2xa0million tonnes of coking coal, of which 43xc2xa0million tonnes was mineable. | WIKI |
| [5] The mine produces about 500,000xc2xa0tonnes of coal per year. | WIKI |