Table 2.

Human population and camel population in KSA from 2011 to 2019.

Year	Camel population	Camel population density (per square kilometer)	Human population	Human population density (per square kilometer)
2011	213320	0.11	No information available
2012	213320	0.11	29,155,187	13.563
2013	223441	0.11	30,052,518	13.98
2014	210424	0.11	30,916,994	14.382
2015	210424	0.11	31,717,667	14.755
2016	481138	0.25	32,442,572	15.092
2017	485926	0.25	33,099,147	15.397
2018	490672	0.25	33,699,947	15.677
2019	No information available

Note: [1] The data of camel population is from Office international des epizooties-World Organization for Animal Health Information System (OIE- WAHIS)http://www.oie.int/wahis_2/public/wahid.php/Wahidhome-/Home/indexcontent/newlang/en.

[2] The data of human population is from World Bank (WB) (a) https://data.worldbank.org.cn/indicator/SP.POP.TOTL?end=2018-&locations=SA&start=2011&view=chart; (b) https://data.worldbank.org.cn/indicator/EN.POP.DNST?end=2018&locations=SA-&start=2012.