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Balanced Account (Prospectus Summary) | Balanced Account
Balanced Account
Objective:
The Account seeks to generate a total return consisting of current income and
capital appreciation.
Fees and Expenses of the Account
This table describes the fees and expenses that you may pay if you buy and hold
shares of the Account. These fees and expenses do not reflect the fees and
expenses of any variable insurance contract that may invest in the Account and
would be higher if they did.
Annual Account Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)
Annual Fund Operating Expenses
Balanced Account
Class 1
Management Fees 0.60%
Other Expenses 0.06%
Total Annual Account Operating Expenses 0.66%
Example
This Example is intended to help you compare the cost of investing in the
Account with the cost of investing in other mutual funds.

The Example assumes that you invest $10,000 in the Account for the time periods
indicated and then redeem all of your shares at the end of those periods. The
Example also assumes that your investment has a 5% return each year and that the
Account's operating expenses remain the same. If separate account expenses and
contract level expenses were included, expenses would be higher. Although your
actual costs may be higher or lower, based on these assumptions your costs would
be:
Expense Example (USD $)
Expense Example, With Redemption, 1 Year
Expense Example, With Redemption, 3 Years
Expense Example, With Redemption, 5 Years
Expense Example, With Redemption, 10 Years
Balanced Account Class 1
67 211 368 822
Portfolio Turnover
The Account pays transaction costs, such as commissions, when it buys and sells
securities (or "turns over" its portfolio). A higher portfolio turnover rate may
indicate higher transaction costs. These costs, which are not reflected in
annual Account operating expenses or in the example, affect the Account's
performance. During the most recent fiscal year, the Account's portfolio
turnover rate was 178.7% of the average value of its portfolio.
Principal Investment Strategies
The Account seeks growth of capital and current income by investing primarily in
equity securities and bonds. Though the percentages in each category are not
fixed, equity securities generally represent 50% to 70% of the Account's assets.
The remainder of the Account's assets is invested in bonds and cash. The Account
utilizes an asset allocation approach that primarily focuses on asset class
allocation (equity versus fixed income) and secondarily growth versus value,
domestic versus foreign, and market capitalization size.

The Account may invest in equity securities of companies with small market
capitalizations ((which as of December 31, 2011 ranged between $20 million and
$3.7 billion, as defined by the Russell 2000® Index), and may also invest in
equity securities of companies with medium market capitalization (which as of
December 31, 2011 ranged between $117 million and $20.51 billion, as defined by
the Russell Midcap Index).

The Account may invest in intermediate maturity fixed-income or debt securities
including government bonds and notes (obligations of the U.S. government or its
agencies or instrumentalities), corporate bonds, asset-backed securities,
mortgage-backed securities, and cash.  The Account may invest in below
investment grade securities (rated BB+ or lower by S&P or Ba1 or lower by
Moody's, commonly known as "junk bonds").  As of December 31, 2011, the average
portfolio duration of the fixed-income portion of the Account was 4.9 years.

The Account may actively trade securities. The Account may utilize derivative
strategies. Specifically, the Account may invest in equity index futures to
manage the equity exposure and Treasury futures to manage the fixed-income
exposure.
  
During the fiscal year ended December 31, 2011, the average ratings of the
Account's fixed-income assets, based on market value at each month-end, were as
follows (all ratings are by Moody's):

54.92% in securities rated Aaa 5.97% in securities rated Ba   0.03% in securities rated C
5.22% in securities rated Aa   3.00% in securities rated B    0.00% in securities rated D
11.71% in securities rated A   2.30% in securities rated Caa  0.69% in securities not rated
16.16% in securities rated Baa 0.00% in securities rated Ca
Principal Risks
The Account may be an appropriate investment for investors seeking current
income as well as long-term growth of capital.

The value of your investment in the Account changes with the value of the
Account's investments. Many factors affect that value, and it is possible to
lose money by investing in the Account. An investment in the Account is not a
deposit of a bank and is not insured or guaranteed by the Federal Deposit
Insurance Corporation or any other government agency. The principal risks of
investing in the Account, in alphabetical order, are:

Active Trading Risk. Actively trading portfolio securities may accelerate
realization of taxable gains and losses, lower fund performance and may result
in high portfolio turnover rates and increased brokerage costs.

Asset Allocation Risk. A fund's selection and weighting of asset classes may
cause it to underperform other funds with a similar investment objective.

Derivatives Risk. Transactions in derivatives (such as options, futures,
currency contracts, and swaps) may increase volatility, cause the liquidation of
portfolio positions when not advantageous to do so and produce disproportionate
losses.

Equity Securities Risk. Equity securities (common, convertible preferred stocks
and other securities whose values are tied to the price of stocks, such as
rights, warrants and convertible debt securities) could decline in value if the
issuer's financial condition declines or in response to overall market and
economic conditions. A fund's principal market segment(s), such as large cap,
mid cap or small cap stocks, or growth or value stocks, may underperform other
market segments or the equity markets as a whole. Investments in smaller
companies and mid-size companies may involve greater risk and price volatility
than investments in larger, more mature companies.

Fixed-Income Securities Risk. Fixed-income securities are subject to interest
rate risk and credit quality risk. The market value of fixed-income securities
generally declines when interest rates rise, and an issuer of fixed-income
securities could default on its payment obligations.

High Yield Securities Risk. High yield fixed-income securities (commonly
referred to as "junk bonds") are subject to greater credit quality risk than
higher rated fixed-income securities and should be considered speculative.

Portfolio Duration Risk. Portfolio duration is a measure of the expected life of
a fixed-income security and its sensitivity to changes in interest rates. The
longer a fund's average portfolio duration, the more sensitive the fund will be
to changes in interest rates.

Prepayment Risk. Unscheduled prepayments on mortgage-backed and asset-backed
securities may have to be reinvested at lower rates. A reduction in prepayments
may increase the effective maturities of these securities, exposing them to the
risk of decline in market value over time (extension risk).

U.S. Government Securities Risk. Yields available from U.S. government
securities are generally lower than yields from many other fixed-income
securities.

U.S. Government Sponsored Securities Risk. Securities issued by U.S.
government-sponsored or -chartered enterprises such as the Federal Home Loan
Mortgage Corporation, the Federal National Mortgage Association, and the Federal
Home Loan Banks are not issued or guaranteed by the U.S. Treasury.
Performance
The following information provides some indication of the risks of investing in
the Account by showing changes in the Account's performance from year to year
and by showing how the Account's average annual returns for 1, 5, and 10 years
(or, if shorter, the life of the Account) compare with those of one or more
broad measures of market performance. Past performance is not necessarily an
indication of how the Account will perform in the future. Performance figures
for the Accounts do not include any separate account expenses, cost of
insurance, or other contract-level expenses; total returns for the Accounts
would be lower if such expenses were included.

The Barclays Capital Aggregate Bond Index is used to show performance of
domestic, taxable fixed-income securities. The blended index is used to show the
performance of the various asset classes used by the Account.
Calendar Year Total Returns (%) as of 12/31 each year (Class 1 Shares)
Bar Chart
Highest return for a quarter during the period of the bar       Q3 '09    12.74%
chart above:                                                    
Lowest return for a quarter during the period of the bar        Q4 '08   -17.87%
chart above:
Average Annual Total Returns (%) For the periods ended December 31, 2011
Average Annual Total Returns Balanced Account
Average Annual Returns, Label
Average Annual Returns, 1 Year
Average Annual Returns, 5 Years
Average Annual Returns, 10 Years
Class 1
Balanced Account - Class 1 4.05% 0.84% 3.49%
S&P 500 Index
S&P 500 Index (reflects no deduction for fees, expenses, or taxes) 2.11% (0.25%) 2.92%
Barclays Capital Aggregate Bond Index
Barclays Capital Aggregate Bond Index (reflects no deduction for fees, expenses, or taxes) 7.84% 6.50% 5.78%
60% S&P 500 Index/40% Barclays Capital Aggregate Bond Index
60% S&P 500 Index/40% Barclays Capital Aggregate Bond Index (reflects no deduction for fees, expenses, or taxes) 4.69% 2.84% 4.40%