I was curious so I went and looked (I know I looked at our whole history before but hadn't been interested for a while for obvious reasons). It looks like we had a great run from at least 2002/2003 - 2008/2009, never finishing lower than 44th during that time. We went 32, 43, 37, 44, 23, 45, 37 during that 7 year period.
I'll update my own post... Our strong spell went back another couple of years. From 2000/2001 through 2008/2009, a period of 9 years, we never finished lower than 45th - going 33, 42, 32, 43, 37, 44, 23, 45, 37.
Starting with 2009/2010 through last year, a 7 year period, we have never finished higher than 53rd - and that was in the first year of that string, 2009/2010. Since 2010/2011, so over the past 6 seasons, we have not finished higher than 68th - going 74, 92, 98, 70, 90, 68.
Going back to the beginning of this competition, we were much stronger in those years than we have been recently. From 93/94 through 99/00, a 7 season period, we went 50, 34, 50, 47, 66, 74, 50...
So we have had 3 distinct periods of performance - mediocre for 7 years (avg. finish of 53), strong for 9 years (avg. finish of 37), crappy for 7 years (avg. finish of 78).