Current Aging of the Dividend Aristocrats

In my article Historical changes of the S&P Dividend Aristocrats I showed that as of 2004, the average stay of dividend aristocrats in the index is about 6.50 years. So how long have the current members of the Dividend Aristocrats Index been raising their dividends?
You can download the information in this google spreadsheet.

It seems that on average, the companies in the Dividend Aristocrats list have increased their dividends for 36 consecuitve years. Thus, it appears that companies stay about 11 years on average in the index. However, the latter number of years is higher than the amount, reported in my article from monday, due to survivorship bias.

Relevant Articles:
- Why do I like Dividend Aristocrats?
- Dividend Growth Stocks Watchlist
- Why dividends matter?
- Historical changes of the S&P Dividend Aristocrats