Table:
Variable	Mean	SD
WTP (The highest bid which a person was willing to pay) (RMB/year)	329.94	219.34
Annual per capita income (RMB)
Lowest 25%	3472.62	1519.34
Middle 25%	7347.68	1009.81
Higher 25%	12,874.09	2614.97
Highest 25%	36,232.52	21,732.23
Variable	N	%
Province
Qinghai	901	51.69
Zhejiang	842	48.31
Sex
Male	1075	61.68
Female	668	38.32
Age (year)
≤35	370	21.23
35–65	972	55.77
≥65	401	23.01
Marital status
Married	1292	74.13
Single, divorced, or widowed	451	25.87
Education status
Primary education or below	538	30.87
Secondary education	848	48.65
Tertiary education	357	20.48
The type of public health insurance
UEBMI	508	29.15
URBMI/NCMS	387	22.20
Not covered or did not know the type	848	48.65
Having chronic conditions
Yes	621	35.63
No	1122	64.37

Convert the illustration into Markdown language.

| Variable | Mean | SD | 
 | --- | --- | --- | 
 | WTP (The highest bid which a person was willing to pay) (RMB/year) | 329.94 | 219.34 | 
 | Annual per capita income (RMB) |  |  | 
 | Lowest 25% | 3472.62 | 1519.34 | 
 | Middle 25% | 7347.68 | 1009.81 | 
 | Higher 25% | 12,874.09 | 2614.97 | 
 | Highest 25% | 36,232.52 | 21,732.23 | 
 | Variable | N | % | 
 | Province |  |  | 
 | Qinghai | 901 | 51.69 | 
 | Zhejiang | 842 | 48.31 | 
 | <COLSPAN=3> Sex | 
 | Male | 1075 | 61.68 | 
 | Female | 668 | 38.32 | 
 | <COLSPAN=3> Age (year) | 
 | ≤35 | 370 | 21.23 | 
 | 35–65 | 972 | 55.77 | 
 | ≥65 | 401 | 23.01 | 
 | <COLSPAN=3> Marital status | 
 | Married | 1292 | 74.13 | 
 | Single, divorced, or widowed | 451 | 25.87 | 
 | <COLSPAN=3> Education status | 
 | Primary education or below | 538 | 30.87 | 
 | Secondary education | 848 | 48.65 | 
 | Tertiary education | 357 | 20.48 | 
 | <COLSPAN=3> The type of public health insurance | 
 | UEBMI | 508 | 29.15 | 
 | URBMI/NCMS | 387 | 22.20 | 
 | Not covered or did not know the type | 848 | 48.65 | 
 | <COLSPAN=3> Having chronic conditions | 
 | Yes | 621 | 35.63 | 
 | No | 1122 | 64.37 |