Just a couple years for me. I found this inspirational song that just needs a couple words subbed in which fits well the spirit needed to keep going. The first verse in this movie version: http://www.youtube.com/watch?v=i-n8YW1rrxI just repeats the stanza about bad weather a few times. On wiki the verses go into detail about nasty traffic and waving fists and an iron grave, etc.