The average length of employment in the United States, per a 1998 study, is 6.6 years. Of the 106 Democratic members of the New York State Assembly, 51 were elected in this decade. 31 came to their seats in the nineties; 16 in the eighties; and eight members have been in office since the seventies, including, of course, Speaker Silver himself.
The problem with our legislature
The 106 Democratic members of the Assembly have, cumulatively, spent 1,335 years in Albany. That is, on average, twelve years and seven months, or roughly twice as long as the average U.S. employee remains in a given job.