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Annual Fund Operating Expenses (Natural Resources Trust)
12 Months Ended
May 01, 2011
Series I, Natural Resources Trust
 
Operating Expenses:  
Share Class Series I
Management fee 1.00%
Distribution and service (12b-1) fees 0.05%
Other Expenses 0.03%
Total fund operating expenses 1.08%
Series II, Natural Resources Trust
 
Operating Expenses:  
Share Class Series II
Management fee 1.00%
Distribution and service (12b-1) fees 0.25%
Other Expenses 0.03%
Total fund operating expenses 1.28%
Series NAV, Natural Resources Trust
 
Operating Expenses:  
Share Class Series NAV
Management fee 1.00%
Distribution and service (12b-1) fees none
Other Expenses 0.03%
Total fund operating expenses 1.03%