On May 20th, 2007 I created a Twitter account*.

3 years later, here are some graphs (click for bigger):

That’s my “tweet-rate”. As you can see, it’s been pretty consistent since around the 2-year mark, hovering between 11 and 13. Shockingly consistent, in fact: in the last year, the highest difference in my tweet-rate has been 0.85 tweets per 1,000.

Above is the amount I’ve tweeted over time. I had 8,900 tweets a year ago, and have tweeted 4,200 times since then. That’s 11.5 tweets per day, every day for the past year. It took me about 2 months from my 2nd anniversary to get the 1,100 tweets to reach the 10,000 milestone, which I did on July 19th, 2009. Another 2 months or so later I hit 11,000 and in December last year I posted my 12,000th tweet – this little gem.

I hit 13,000 tweets last week on May 11th. It was the first tweet from my iPad, which I received (early, thanks to a friend who was in the US and kind enough to bring one back for me) that day.

At the time of this posting, I have 883 Followers (up 124 or 14% since a year ago), am following 736 (up 14 or 2%) and have tweeted 13,114 times (up 4200 or 32% since last year).

You might also be interested in last year’s stats. I’ve been using Josh Sharp’s Twitterscribe since November 2008 to keep track of my tweets. If you’re crazy and want to read them all, I’ve uploaded a snapshot that’s up-to-date until today.

• I originally registered as @HarrisonX. Some time in 2008 I switched to @adnrw.