let's see...I calculate that I have at least 3 to 4 slow downs or stalls per day.
So,if we take an average of 2 minutes per each stall and multiply that by 4 that equals 8.
Take 8 minutes of stall per day and times that by 30 days. That equals 240 minutes. Which equals 4 hours. Take the 4 hours and times that by 12 months and you 48 hours.
OK everybody add 2 days to whatever you are at for the year.