This excerpt taken from the ESIO 10-K filed Aug 15, 2007.
Other income increased by $2.8 million to $10.4 million in fiscal 2007 compared to $7.6 million in fiscal 2006. The increase was primarily due to a rise in interest income of $2.3 million due to higher investment yields, which increased from an annualized effective year-to-date yield of 4.6% at the end of fiscal 2006 to 5.2% at the end of fiscal 2007. Weighted average invested assets in fiscal 2007 decreased to $222.9 million, compared to $225.2 million for fiscal 2006, which partially offset the increased investment yields. The increase in income due to rising market interest rates was also partially offset by a decrease in net interest income related to taxes refunds. During fiscal 2007, we received net interest income related to various income and property tax refunds and payments totaling $0.4 million, compared to $0.7 million for the prior fiscal year.
Our investment income in fiscal 2008 is expected to decrease due to the use of investment assets to purchase NWR and the remaining shares authorized under our repurchase program further described in the discussion of Financial Condition and Liquidity below. Future investment income levels will depend on our ability to generate and invest cash and obtain favorable returns on our investment assets.