Table 12.

Traditional accident statistical data of the IHS database in 2011–2021.

Subject	Distribution Type	Number	Total	All	Weights ${\mathit{p}}_{\mathit{i}\mathit{j}}$
bridge subsystem	navigation operators	2694	5786	16,146	16.69%
	navigation monitoring and warning	2076			12.86%
	navigation communication equipment	1016			6.29%
engine room subsystem	marine engineer	1519	3461		9.41%
	engine room monitoring platform	777			4.81%
	maintenance equipment	1165			7.22%
cargo hold subsystem	operators	1032	2643		6.39%
	monitoring system	1032			6.39%
	emergency equipment	579			3.59%
deck subsystem	staff	2321	3256		14.37%
	protection equipment	381			2.36%
	ship rescue equipment	554			3.43%
living cabin subsystem	personal protective equipment	536	1000		3.32%
	personnel health protection unit	464			2.88%