Analyze the sentiment of this statement extracted from a financial news article. Provide your answer as either negative, positive, or neutral.
Text: The reasons behind the estimate include the rise in 2008 rent levels and several fully-leased office and retail properties , which were completed and added to the company 's investment property portfolio .
Answer:
The reasons behind the estimate include the rise in 2008 rent levels and several fully-leased office and retail properties , which were completed and added to the company 's investment property portfolio .