David Simon
Chairman, Chief Executive Officer & President at Simon Property Group
Good evening. Thanks, Tom.
Before turning to the results, I would like to provide some perspective on our company as we celebrated our 30th anniversary as a public company in mid-December of last year. We have grown our company into a global leader of premier shopping, dining, entertainment and mixed-use destinations managing through and in some cases, very turbulent times. Over the last three decades from our base of 115 properties in 1993, we have acquired approximately 300 properties, developed for then 50, and disposed of approximately 250 resulting in our current domestic portfolio of about 215 assets.
We expanded globally, and today have 35 international outlets, including world -- now world-renowned outlets in Asia, and our portfolio is differentiated by product by geography and closed and open-air centers located in large and dense catchment areas. Our portfolio is supported by the industry's strongest balance sheet and a top management team. We are the largest landlord, the world's most important retailers, and not by accident, our diversified tenant base has solid credit, our mix is always changing and adapting, best illustrated by the fact that compared to 30 years ago, only one retailer is still in our current top 10 tenants.
Our team's hard work has resulted in industry-leading results including some of the following; our annual revenue increased from $424 million to nearly $5.7 billion, annual FFO -- our annual FFO generation increased 30 times from approximately $150 million to nearly $4.7 billion, a 12% CAGR. Total market capitalization has increased from $3 billion to $90 billion. We have paid over $42 billion in dividends to shareholders. We have assets in our portfolio that have been in business for more than 60 years. Those assets are still growing today with many generating a $100 million in NOI. These assets are in great locations, have a loyal and large customer base that is where the retailers want to be. No other asset type has longevity including the NOI generation and embedded future growth that these assets have, yes, they change. Yes, they evolve, yes they adapt, but yes, they also grow.
Our collection of assets cannot be replicated. And there are hidden -- always hidden opportunities within that. I want to thank the entire Simon team, who have contributed to 30 years of success as a public company. And now let me turn to our fourth quarter '23 results. We generated approximately $4.7 billion in funds from operation in 2023 or $12.51 per share and returned $2.9 billion to shareholders in dividends and share repurchase. For the quarter, FFO was $1.38 billion or $3.69 per share compared to $1 billion -- $1.27 billion or $3.40 per share. Let me walk you through some of the highlights for this quarter compared to Q4 of 2022, domestic operations had a terrific performance this quarter and contributed $0.28 of growth primarily driven by higher rental income with lower operating expenses.
Gains from investment activity in the fourth quarter were approximately $0.07 higher in a year-over-year comparison, other platform investments at $0.03 lower contribution compared to last year. FFO from our real estate business was $3.23 per share in the fourth quarter compared to $2.97 from last year. That's 8.7% growth and $11.78 per share for '23 compared to $11.39 last year. Domestic property NOI increased 7.3% year-over-year for the quarter and 4.8% for the year continued leasing momentum, resilient consumer spending operational excellence delivered results for the year, exceeding our initial expectations. Our NOI ended the year higher than 2019 pre-pandemic levels. Portfolio NOI, which includes our international properties at constant currency grew 7.2% for the quarter and 4.9% for the year. Mall and outlet occupancy at the end of the quarter, fourth quarter was 95.8%, an increase of 90 basis points compared to last year.
The Mills occupancy was 97.8%, and occupancy is above year-end 2019 levels for all of our platforms. Average base minimum rent for malls and outlets increased 3.1% year-over-year and The Mills rents increased 4.3%, we signed more than 960 leases for approximately 3.4 million square feet in the fourth quarter. For the year, we signed over 4,500 leases, representing more than 18 million square feet approximately 30% of our leasing activity for the year were new deals, we're going-in rents of approximately $74 per square foot and renewals had going-in rents of approximately $55 per square foot. Leasing momentum for the last couple of years continues Into 2024. Reported retailer sales per square foot in the quarter was $743 for malls and outlets combined and $677 through The Mills.
During the quarter, we sold a portion of our interest in ABG for gross proceeds of $300 million in cash and reported pretax and after-tax gains of $157 million and $118 million respectively. We opened our 11 outlet in Europe last year, construction continues on two outlets, yes, one in Tulsa, Oklahoma, and yes, one in Jakarta, Indonesia. We completed 13 significant re-developments. And we'll complete other major development projects this year. In addition, we expect to begin construction this year on five to six mixed-use projects representing around $800 million of spend from Orange County to Ann Arbor, to Boston, to Seattle, to Roosevelt Field, they are some of the ones that are planning to start this year. And we expect to fund these redevelopments to mixed-use projects with our internally generated cash flow of over $1.5 billion after dividend payments.
During 2023, we completed $12 billion in financing activities, including three senior note offerings for approximately $3.1 billion including the Klepierre exchangeable offering. We recast and upsized our primary revolver credit facility to $5 billion and completed $4 billion of secured loan refinancings and extensions, our rated -- A-rated balance sheet is as strong as ever, we have approximately $11 billion of liquidity. During 2023, we paid, as I mentioned earlier, $2.8 billion in common stock dividends. We repurchased 1.3 million shares of our common stock at an average price of just over $110 per share in 2023, and today we announced our dividend of $1.95 per share for the first quarter and year-over-year increase of 8.3%. The dividend is payable on March 29 of 2024.
Now 20 -- moving onto 2024, our FFO guidance is $11.85 to $12.10 per share. Our guidance reflects the following assumptions; domestic property NOI growth of at least 3%, increased net interest expense compared to 2023 of approximately $0.25 to $0.30 per share reflecting current market interest rates on both fixed and variable debt assumptions and cash balances. Contribution from other property, other platform investments of approximately $0.10 to $0.15 per share; no significant acquisition or disposition activity, and our current diluted share count of approximately 374 million shares. So, with that said. It's safe to say, we're excited to enter year '31 as a public company.
Thank you for your time and we're ready for Q&A.