MBTA Train Performance in the Good Old Days…
2008’s MBTA Commuter Rail On-Time Performance
BostonNOW (published February 5, 2008) 
http://www.bostonnow.com/news/local/2008/02/05/rail-hits-77-ontime
But back in the Good Old Days, the performance was far better. Before the Fall of 2007, I was on time every day. Now it’s a rare, embarrassing event to be on time. It affects my staff whom I expect to be on time (see About) and my standing in my company as well as my salary and the cost of lost appointments. I don’t care if it says in January, my line (Frankline is (wow, golly) up to 71% - that is unacceptable and it costs me money and credibility.
Commuter Rail On-Time Performance (source: 2005 MBTA Title VI Report, Table 4-6)
Found on site: