22 At December 31, 2001, the Company’s tenant base was comprised of the following industries, based on Standard Industrial Classifications, broken down by percentage of total portfolio base rent: services, 36.1%; manufacturing, 31.5%; finance, insurance and real estate, 12.0%; transportation, communications and public utilities, 10.5%; wholesale trade, 4.6%; government, 2.6%; retail trade, 1.7%; construction, 0.8%; and agriculture, forestry and fishing, 0.2%.