Robbie made some corrections to his earlier plot:

January 6, 2011
A corrected plot of Time For First Team To Find The Coin versus Year
Posted by Anand Sarwate under Uncategorized | Tags: MIT, puzzles |[7] Comments
January 6, 2011
Robbie made some corrections to his earlier plot:

January 6, 2011 at 8:59 pm
Note that this year, HQ will stay open until 3:17 pm on Sunday, no matter when the first team finishes. (I believe we’re trying to change the notion that everyone should stop hunting as soon as the coin is found, although I don’t know whether that’s our official position.)
January 6, 2011 at 9:47 pm
The basis for this graph is definitely “time until the coin is found” – HQ has stayed open for several hours past that moment for the past few years.
In fact, I bugged him to pull out the graph and update it b/c we were skeptical of your optimism that the coin will be found before 3pm Sunday – but it looks like we are, in fact, due for another short hunt (if possibly slightly longer than last year) before we get a really long one maybe next year.
Hey, I know a team who knows how to write an excruciatingly long hunt…
January 7, 2011 at 9:52 am
It’s fate!
January 24, 2012 at 4:45 pm
Is the data behind this graph available? I’ve made an updated version, through 2012, for Manic Sages’ internal consumption in discussing the hunt-length issue; but I don’t want to release it because my datapoints are just eyeballed off your graph, which seems like not the right approach.
January 25, 2012 at 7:19 am
From an old email…
Year Hours Ending day/time
2009 63 Monday 0302
2008 56.5 Sunday 2030
2007 37.5 Sunday 0130
2006 35.5 Saturday 2330
2005 54.5 Sunday 1830
2004 68.5? Monday 0830?
2003 67.5 Monday 0726
2002 41.5 Sunday 0529
2001 38.25 Sunday 0216
2000 62 Monday 0200
1999 59.25 Sunday 2315
1998 50.5 Sunday 1430
1996 56 Sunday 2000
1995 64 Monday 0400
January 25, 2012 at 8:31 am
Thanks Anand! I am presuming I should ignore the datapoint for 2000, since that’s the year that was revised. I also note that these datapoints don’t _quite_ appear to match the ones on the graph everywhere, but they’re within .5 .
Here’s my version of the graph:
https://docs.google.com/spreadsheet/ccc?key=0Aj6L5l-UBC8bdGNpZ2wxTEI2SzVRSjVXNFc1SmhYOFE
January 29, 2013 at 12:53 pm
[...] that there is a “trajectory” towards longer and longer hunts. For reference, here are the solving times for hunts up to 2010, showing the mysterious trend Snyder flags is more or less fabricated. So basically that line of [...]