Returns quoted represent past performance, which is no guarantee of future results. Investment returns and principal value will fluctuate so that when shares are redeemed, they may be worth more or less than their original cost. Returns less than one year are cumulative. Due to market conditions, current performance may be higher or lower than the performance shown. Returns at NAV would be lower if the sales charge were included. Returns do not reflect the deduction of taxes that a shareholder would pay on Fund distributions or the redemption of shares.

Returns Periods:  Month ending:  2/28/2010    YTD as of:   3/12/2010
  Average Annual Total Returns    
  NAV (Without Sales Charge) Offer (With Sales Charge)  
Symbol Fund Name YTD
  (%)  
1Yr
  (%)  
3Yr
  (%)  
5Yr
  (%)  
10Yr
  (%)  
Since
Inception 
YTD
  (%)  
1Yr
  (%)  
3Yr
  (%)  
5Yr
  (%) 
10Yr
  (%)  
Since
Inception 
Inception   
Date 
FLAAXAll-American Municipal Bond Fund2.3119.373.603.845.336.37-2.0014.352.142.964.886.1610/03/1988
FAZTXArizona Municipal Bond Fund2.0113.742.933.404.845.90-2.298.921.482.524.395.7110/29/1986
NCHAXCalifornia High Yield Municipal Bond Fund2.9929.23-3.51---0.73-1.3423.72-4.89---1.8103/29/2006
NCAIXCalifornia Insured Municipal Bond Fund1.3010.871.712.724.555.53-2.986.240.251.844.105.3409/07/1994
NCAAXCalifornia Municipal Bond Fund2.0014.562.203.144.615.64-2.329.790.752.264.165.4509/07/1994
FCOTXColorado Municipal Bond Fund2.1514.662.813.345.015.71-2.109.841.352.464.565.5105/04/1987
FCTTXConnecticut Municipal Bond Fund1.8311.863.783.885.365.94-2.487.152.303.004.905.7407/13/1987
NBMSXConservative Allocation Fund1.8932.800.483.263.174.82-3.9525.16-1.482.042.564.3608/07/1996
NEEAXEnhanced Core Equity Fund3.7449.45----11.13-2.2440.89----13.4512/03/2007
NDPAXEnhanced Mid-Cap Fund8.0067.00----10.971.8057.43----13.2912/03/2007
FLOTXFlorida Preference Municipal Bond Fund1.8415.332.102.914.325.33-2.4010.470.642.033.885.1006/15/1990
FGATXGeorgia Municipal Bond Fund1.5510.562.423.125.085.96-2.695.900.962.244.635.7703/27/1986
NGOAXGrowth Allocation Fund2.2348.55-3.023.58-4.18-3.6540.02-4.922.36-3.0012/09/2004
NHYAXHigh Yield Bond Fund2.6740.662.514.53-4.57-2.2333.960.863.52-3.6012/20/2004
NHMAXHigh Yield Municipal Bond Fund3.4635.15-6.61-0.974.243.56-0.8929.42-7.93-1.823.793.1506/07/1999
NMBIXInsured Municipal Bond Fund1.519.052.713.244.775.85-2.744.511.242.364.335.6609/06/1994
NMBAXIntermediate Duration Municipal Bond Fund2.1010.693.983.834.856.07-1.027.392.933.214.535.9706/13/1995
FKSTXKansas Municipal Bond Fund1.6611.203.923.905.425.43-2.586.512.453.024.975.1801/09/1992
FKYTXKentucky Municipal Bond Fund1.9110.843.413.705.196.16-2.396.231.932.814.755.9605/04/1987
FLTDXLimited Term Municipal Bond Fund1.806.934.513.764.345.23-0.774.263.643.234.075.1110/19/1987
FTLAXLouisiana Municipal Bond Fund1.7214.601.942.894.925.88-2.599.760.492.024.475.6609/12/1989
NMDAXMaryland Municipal Bond Fund1.7114.693.903.985.465.27-2.549.902.413.085.015.0209/07/1994
NMAIXMassachusetts Insured Municipal Bond Fund1.7510.513.903.865.035.43-2.515.902.432.964.585.2309/07/1994
NMAAXMassachusetts Municipal Bond Fund1.7116.033.433.715.155.41-2.6111.111.982.834.705.2209/07/1994
FMITXMichigan Municipal Bond Fund1.519.623.133.615.306.49-2.785.061.662.724.856.3006/27/1985
FMOTXMissouri Municipal Bond Fund2.0514.143.153.735.256.05-2.279.351.692.844.805.8508/03/1987
NNSAXModerate Allocation Fund2.3144.050.473.744.196.28-3.5735.77-1.492.523.575.8208/07/1996
NNGAXMulti-Manager Large-Cap Value Fund4.6852.89-5.481.492.686.20-1.3244.15-7.320.302.075.7408/07/1996
NCBAXMulti-Strategy Core Bond Fund1.8716.167.305.81-5.55-1.9311.825.945.01-4.7712/20/2004
NQCAXNWQ Large-Cap Value Fund4.1855.60-8.36---7.24-1.8246.65-10.16---8.9412/15/2006
NQVAXNWQ Multi-Cap Value Fund4.8065.14-13.50-3.506.566.13-1.2455.58-15.19-4.645.925.6212/09/2002
NSCAXNWQ Small-Cap Value Fund10.0877.71-11.64-1.60--0.293.7467.55-13.37-2.75--1.4112/09/2004
NSMAXNWQ Small/Mid-Cap Value Fund7.3977.83-10.76---9.651.1967.52-12.50---11.3012/15/2006
NNJAXNew Jersey Municipal Bond Fund1.8313.143.783.945.365.45-2.418.392.323.044.915.2009/06/1994
FNMTXNew Mexico Municipal Bond Fund1.5710.613.373.734.995.14-2.716.011.902.844.534.8809/16/1992
NNYIXNew York Insured Municipal Bond Fund1.749.843.543.585.165.68-2.525.242.082.694.715.4809/07/1994
NNYAXNew York Municipal Bond Fund2.0413.874.114.135.466.11-2.289.102.623.245.005.9109/07/1994
FLNCXNorth Carolina Municipal Bond Fund1.9111.043.593.835.415.78-2.346.372.132.934.965.5903/27/1986
FOHTXOhio Municipal Bond Fund1.4110.403.823.905.256.40-2.885.782.353.014.806.2106/27/1985
FPNTXPennsylvania Municipal Bond Fund1.5612.903.683.975.555.92-2.678.172.223.085.105.7310/29/1986
NPSAXPreferred Securities Fund5.83103.80-0.10--0.180.8394.08-1.70---1.3412/19/2006
NSBAXSanta Barbara Dividend Growth Fund0.9138.49-2.08--2.43-4.8830.50-3.98--0.8903/28/2006
NSAGXSanta Barbara Growth Fund2.6138.58-5.99---3.95-3.2830.61-7.82---5.3903/28/2006
NSDAXShort Duration Bond Fund0.858.965.354.48-4.25-1.156.754.654.06-3.8512/20/2004
NSIAXSymphony International Equity Fund-0.3547.16----19.23-6.0938.68----21.9105/30/2008
NCGAXSymphony Large-Cap Growth Fund3.9953.07-1.68---1.80-1.9844.25-3.60---3.5912/15/2006
NSLAXSymphony Large-Cap Value Fund4.8744.68-5.16---0.89-1.1636.33-7.01---2.4405/31/2006
NCCAXSymphony Mid-Cap Core Fund6.7356.03-3.46---0.510.5747.04-5.35---2.0705/31/2006
NOPAXSymphony Optimized Alpha Fund2.7441.74----7.43-3.1433.61----9.6709/28/2007
NSSAXSymphony Small-Mid Cap Core Fund5.0648.61-7.96---3.95-0.9940.05-9.75---5.4605/31/2006
FTNTXTennessee Municipal Bond Fund2.0110.914.284.205.606.20-2.266.222.803.315.155.9911/02/1987
NTEAXTradewinds Emerging Markets Fund2.3895.97---69.50-3.5084.75---61.1312/29/2008
NWGAXTradewinds Global All-Cap Fund4.5569.256.89--10.10-1.4459.574.81--8.4503/28/2006
NPTAXTradewinds Global All-Cap Plus Fund3.7877.98---50.59-2.1967.71---43.1412/30/2008
NTGAXTradewinds Global Resources Fund2.2772.373.36--4.18-3.6362.491.34--2.2812/15/2006
NAIGXTradewinds International Value Fund3.5341.72-2.353.951.454.59-2.4433.53-4.262.730.853.9912/20/1999
NVOAXTradewinds Value Opportunities Fund4.8264.673.5710.82-11.28-1.2155.191.549.51-10.0312/09/2004
FVATXVirginia Municipal Bond Fund2.1014.653.814.025.366.13-2.209.852.343.134.925.9403/27/1986
NWCAXWinslow Large-Cap Growth Fund2.38----27.98-3.51----20.6205/15/2009
FWIAXWisconsin Municipal Bond Fund1.9010.873.583.765.365.02-2.396.252.102.874.904.7406/01/1994

Class A shares of National and State Municipal Bond Funds have a 4.2% (3.0% for Intermediate Duration and 2.5% for Limited Term) maximum sales charge. Class A shares have a maximum sales charge of 3.75% for the Multi-Strategy Income Fund; 4.75% for the High Yield Bond Fund and 2.0% for the Short Duration Bond Fund. Class A shares of Value, Global/International, Growth, Core, Asset Allocation and Quantitative Funds have a 5.75% maximum sales charge. Funds that have Class B Shares have a CDSC that begins at 5% for redemptions during the first year and declines periodically until after six years when the charge becomes 0%. Class B Shares automatically convert to Class A Shares eight years after purchase. Class C Shares have a 1% CDSC for redemptions within less than one year, which is not reflected in the one-year total return. Class I Shares have no sales charge and may be purchased under limited circumstances or by specified classes of investors. Class R3 Shares have no sales charge and are available to only certain retirement plan clients of financial intermediaries.

Returns of the oldest share class or classes of a Fund are actual. Returns for other classes are actual for the period since inception and prior to class inception are the returns for the Fund's oldest class, adjusted for expenses.

Equity investments are affected by stock market fluctuations that occur in response to economic conditions; foreign investing poses additional risk including currency risk and investing in securities of developing countries involves risks greater than investing in foreign developed countries.

Bond investments are affected by changes in interest rates and the creditworthiness of the issues held by the funds; high-yield investments pose additional credit risk associated with below investment grade bonds.

Income from municipal bond funds is generally exempt from regular federal and state personal income taxes. Income may be subject to the federal alternative minimum tax and local taxes. Capital gains distributions are subject to tax.

Select a Fund name above to view its overview page.