Another difference from year to year is that because the date of Easter varies, the arrangement of the weeks of Ordinary Time before Lent and after Pentecost will vary.
One big difference that comes quickly to my mind involves 2008 and 2011: Easter in 2008 fell on March 23, the second-earliest possible date, but on April 24 in 2011, the second-latest possible date.
I checked the
Calendar of Lectionary Cycles and Movable Liturgical Feasts (1969 – 2050) (which points out the same thing about Easter extremes as I just did) on Fr. Felix Just’s handy
Catholic Resources site. The year 2008 saw
4 weeks of Ordinary Time before Lent (including the partial week ending on Shrove Tuesday), but 2011 saw
9 weeks. The week of Ordinary Time after Pentecost was
#6 in 2008 but
#11 in 2011.
Each year omits a different week of Ordinary Time, which you can figure out from the gap. (Apparently such an omission doesn’t happen every year, but it happens more often than not.)
Since this is 2014, another three years off, I checked the corresponding figures (
8 weeks of Ordinary Time before Lent; week #9 skipped;
week #10 after Pentecost). These resemble–but are not identical to–those of 2011.
The difference in overall coverage is not extreme, but anyone wondering “can I reuse [some resource] made specifically for that liturgical year, same cycle, that happened to be three [six, nine, twelve…] years ago?” should keep this “jump” in mind, especially around those transitions.