Study on the Parameter Equation of Coal and Gas Outburst Hole

Table 2

Five years’s trend statistics of death toll of gas accident in LPS (1991–2020).

Year	Death toll of gas accident	Total number of deaths in coal mine accidents	Percentage
1991–1995	501	753	0.66
1996–2000	712	762	0.93
2001–2005	282	571	0.49
2006–2010	93	538	0.17
2011–2015	137	233	0.59
2016–2020	24	48	0.5