2013 is the first year since 1987 that has no repeating digits.

1987 <-- All Unique
1988 <-- Two 8's
1989 <-- Two 9's
1990-1999 <-- Two 9's in the middle
2000-2009 <-- Two 0's in the middle
2010 <-- Two 0's
2011 <-- Two 1's
2012 <-- Two 2's
2013 <-- All Unique

From 1987 to 2000 is 13 years
From 2000 to 2013 is 13 years
2000, the Y2K year,  is right in the middle

Between 1987 and 2013 there are 25 consecutive years containing at least one set of duplicate digits.
It will be 2020 before we have another year containing duplicate digits.

2013-2019 will be SEVEN YEARS of non-duplicate digits.

2013 <-- 1
2014 <-- 2
2015 <-- 3
2016 <-- 4
2017 <-- 5
2018 <-- 6
2019 <-- 7
2020 <-- Next Duplicate

Just saying...