National Survey of Family Income and Expenditure

is "Portal Site of Official Statistics of Japan" (external site) where you can browse statistics tables and database.

2009 Survey

• Outline of the Survey
• Definitions of Terms
• The Methods to Estimate of Value of Tangible Fixed Assets
• Summary of Results
• Statistical Tables
• National Income and Expenditure Survey for one-person households
• Integrated tabulation of National Income and Expenditure Survey for one-person households into National Survey of Family Income and Expenditure 2009

2004 Survey

• Outline of the Survey
• Definitions of Terms
• The Methods to Estimate of Value of Tangible Fixed Assets
• Summary of Results Concerning Major Durable Goods
• Summary of Results Concerning "Family Income and Expenditure"
  and "Savings and Liabilities"
  (One-Person Households)
• Summary of Results Concerning "Family Income and Expenditure"
  and "Savings and Liabilities"
  (Two or More Person Households)
• Summary of Results Concerning Family Assets
• Statistical Tables

1999 Survey

• Outline
• Definitions of Terms
• The Methods to Estimate of Value of Tangible Fixed Assets
• Summary of Results Concerning Major Durable Goods
• Summary of Results Concerning "Family Income and Expenditure" and "Savings and Liabilities"
  (One-Person Households)
• Summary of Results Concerning "Family Income and Expenditure" and "Savings and Liabilities"
  (Two or More Person Households)
• Summary of Results Concerning Family Assets
• Statistical Tables

1994 Survey

• Summary of Results Concerning Family Assets