The set of journals have been ranked according to their SJR and divided into four equal groups, four quartiles. Q1 (green) comprises the quarter of the journals with the highest values, Q2 (yellow) the second highest values, Q3 (orange) the third highest values and Q4 (red) the lowest values.
Now, the New York Times offers the viewpoint that, in terms of cars and mileage, 200,000 is the new 100,000. Two numbers make it apparent that 100K is no big thing anymore: The average car on the road is about 11 years old, and the average car is driven about 15,000 miles per year. Multiply those figures together and youâve got a fairly average car with something like 165,000 miles on it.
The average car is driven about 10,000 miles a year. This means that most cars have about 15 years worth of mileage. This fact allows us to combine mileage life and years of life into a single unit of measurement. In other words, a typical car has 15 year of life and 15 mileage units of 10,000 miles each. Thus, a brand new car has 30 units of life. As a car ages and is driven, these units are used up. If you divide the number of units left in a vehicle by its price, you have the cost per unit.