As of June 2019, the number of employees in the Japanese mining and quarrying of stone and gravel industry was highest for the age group of 45 to 49 year olds, amounting to around *** thousand workers. 19 years and under was the smallest age group with only around ** employees.
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MHLW (Japan). (October 22, 2021). Number of employees in the Japanese mining, quarrying of stone and gravel industry as of June 2019, by age group [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved August 01, 2026, from /statistics/1269659/japan-number-employees-mining-quarrying-stone-gravel-by-age-group/
MHLW (Japan). "Number of employees in the Japanese mining, quarrying of stone and gravel industry as of June 2019, by age group ." Chart. October 22, 2021. ÌÇÐÄÆƽâ°æ. Accessed August 01, 2026. /statistics/1269659/japan-number-employees-mining-quarrying-stone-gravel-by-age-group/
MHLW (Japan). (2021). Number of employees in the Japanese mining, quarrying of stone and gravel industry as of June 2019, by age group . ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: August 01, 2026. /statistics/1269659/japan-number-employees-mining-quarrying-stone-gravel-by-age-group/
MHLW (Japan). "Number of Employees in The Japanese Mining, Quarrying of Stone and Gravel Industry as of June 2019, by Age Group ." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 22 Oct 2021, /statistics/1269659/japan-number-employees-mining-quarrying-stone-gravel-by-age-group/
MHLW (Japan), Number of employees in the Japanese mining, quarrying of stone and gravel industry as of June 2019, by age group ÌÇÐÄÆƽâ°æ, /statistics/1269659/japan-number-employees-mining-quarrying-stone-gravel-by-age-group/ (last visited August 01, 2026)
Number of employees in the Japanese mining, quarrying of stone and gravel industry as of June 2019, by age group [Graph], MHLW (Japan), October 22, 2021. [Online]. Available: /statistics/1269659/japan-number-employees-mining-quarrying-stone-gravel-by-age-group/
