Thanks, Pete, and good morning, everyone. Fourth quarter operating income of $0.67 per share benefited from relatively low cat losses, stronger-than-expected prior year reserve development, $0.04 a positive DAC unlocking and $0.04 of favorable earnings in life, primarily related to mortality. Offsetting these positive items was $0.05 of expenses related to CEO and other incentive compensation.
Adjusted for these items, fourth quarter earnings would have been $0.50 to $0.55 per share at the top end of our guidance range. On a full year basis, operating income of $2.08 per share also benefited from a number of items that weren't included in our original guidance. Prior year P&C reserves continued to develop favorably. However the level of releases in 2012, was higher than we expected. Favorable mortality in our life segment contributed $0.07. Strong equity markets and improved annuity persistency resulted in positive DAC unlocking of $0.07. Adjusted for these items, normalized 2012 earnings would have been in the $1.85 range.
Pretax net investment income of $77 million was up over 3% from the prior year quarter, primarily related to the annuity segment. Our reinvestment rate in the quarter was around 4.2%, which was ahead of expectations. We continue to find opportunities to put money to work at attractive, risk-adjusted yields without venturing into asset classes or individual securities inconsistent with our conservative investment philosophy. That said, we did enhance our annuity portfolio returns during 2012 by adding a modest allocation to alternative investments, which helped mitigate what would have otherwise been a declining interest spread in the second half of the year.
On a full year basis, the average spread in annuity was 211 basis points. Without the alternative investments, the average net spread would have been around 200 basis points. Reported book value ended the year at $31.65 per share, a 19% increase year-over-year driven by solid operating results and an increase in unrealized gains in the investment portfolio. The continued combination of low treasury yields and tightening spreads resulted in a net unrealized gain of $650 million at year end. Book value excluding net unrealized gains grew 11% to end the year at $21.93 per share.
In terms of our capital position, we generated roughly $90 million of statutory operating income and $25 million of additional excess capital in 2012. While RBC ratios aren't final, our initial estimates have been comfortably above our targets. The P&C ratio is estimated at 550%, with a premium-to-surplus ratio of 1.35, while life company RBC should end the year around 470%.
During the quarter, we repurchased 115,000 common shares, utilizing an additional $2 million of our authorization. We now have $32 million remaining. When we originally authorized our share repurchase program in December of 2011, Horace Mann stock was trading around $13 per share or 65% of book value, excluding net unrealized investment gains. The Board authorized the program in light of our excess capital position and a clearly undervalued stock price. While the strong price appreciation of our stock during 2012 was welcomed, it has reduced the relative desirability of share repurchases and has tipped the scale somewhat in favor of dividends as a means of returning capital to shareholders. With that said, however, we will continue to be opportunistic in our share repurchases and are well-positioned to capitalize on any market dislocation.
As Pete mentioned, our outlook for 2013 operating earnings is $1.75 to $1.95 per share. We expect underlying results to improve in property and casualty, offset by a reduction in favorable pricing reserve development, a reversion to model mortality experience in our life operations, no benefit from DAC unlocking and $0.05 of spend on customer experience and infrastructure investments.
Let me break down our 2013 outlook by segment and provide some additional color behind our assumptions. In property/casualty, we expect written premium to grow 2% to 3%, which reflects a 2013 rate plan of mid-single-digit increases in auto and a double-digit increase in property. We expect those rates, coupled with 20 [indiscernible] pricing actions to outpace loss costs and contribute to about a 2-point improvement in the underlying P&C loss ratio in 2013. We anticipate this improvement will be offset by a reduced level of favorable prior year reserve development, as well as a modest increase in the expense ratio.
So all in, on a reported basis, we expect the P&C combined ratio to basically be flat with 2012 results. In annuity, after adjusting 2012 for the $0.07 benefit from DAC unlocking, we anticipate operating earnings to be relatively stable in 2013, as growth in annuity assets is expected to offset a decline in spreads. Using a 4% reinvestment rate assumption, we expect the full year average in net interest spread in 2013 to be in the low-190 basis point range.
And finally, in our life segment, we're anticipating a return to model mortality along with the modestly lower portfolio yield in 2013, which should result in about a $5 million to $6 million after-tax decline in operating earnings. As you'll see, our consolidated 2013 operating earnings guidance is generally in line with 2012 results after adjusting for the favorable items we just discussed.
So to summarize, 2012 was a solid year for Horace Mann. We saw a broad-based increases in new business sales and policy retention, as well as improvement in the underlying earnings across all 3 segments of our multiline insurance platform. Moving into 2013, we are well-positioned to capitalize on the strong momentum while reinvesting in our business to set the stage for continued profitable growth.
Now, I'll turn the call over to Ryan to begin the Q&A session.