Research on a Model for an Empirical Analysis of Inherent Defect Insurance Based on Ruin Theory

Table 1

Claim settlement details of each engineering division and subdivision in Shanghai in 2021.

Scope of claim settlement	Claim settlement number	Proportion (%)	Claim settlement amount (yuan)	Proportion (%)	Average claim settlement amount (yuan)
10-year term foundation and main structure	10	0.80	134444.00	1.25	13444.40
5-year term waterproofing and insulation	817	65.73	7219099.04	67.30	8836.11
5-year term window and door	1	0.08	6150.00	0.06	6150.00
5-year term wall and ceiling plastering layer	2	0.16	8366.00	0.08	4183.00
2-year term electrical, water supply, and drainage	145	11.67	1842486.87	17.18	12706.81
2-year term window and door	83	6.68	241773.00	2.25	2912.93
2-year term wall and ceiling plastering layer	44	3.54	282834.99	2.64	6428.07
2-year term renovation	141	11.34	990910.30	9.24	7027.73
Total	1243	100.00	10726064.20	100.00	8629.17