It turns out I did not have to wait long for the last dividend increase of 2013 to be announced:
Becton, Dickinson and Company (BDX) is increasing its quarterly dividend by 10.1%, from $0.495 to $0.545 per share, putting the company on track for its 42nd consecutive fiscal year of dividend growth (news release). Given that I own 25 shares of BDX, my quarterly dividend increases from $12.38 to $13.63 and my yield on cost becomes 3.06%. The extra $5.00 in annual dividend income raises my forward 12-month dividend total to $3,503.
In summary, 32 of the 33 stocks in my portfolio had dividend increases that took effect in 2013, with the lone holdout being INTC. The mean and median dividend increases were 11.7% and 10.1%, respectively, with a total of 18 double-digit percent increases. For comparison with last year, 24 of the 25 stocks in my portfolio (at the time) had dividend increases that took effect in 2012, with mean and median increases of 10.4% and 8.5%, with a total of 12 double-digit percent increases. Overall, I think this shows that my portfolio continues to maintain a strong rate of organic dividend growth.