Smallest average delta in top 3 race places

Delta (secs)	# Seasons	Factor Points	% Seasons	Cummulative %
< 15	1	10	1%	1%
15 – 20	5	8	7%	9%
20 – 25	7	6	10%	19%
25 – 30	5	4	7%	27%
30 – 35	5	2	7%	34%
35 – 40	4	1	6%	40%
40 – 45	9		13%	54%
45 – 50	7		10%	64%
50 – 55	6		9%	73%
55 – 60	1		1%	75%
> 60	17		25%	100%

Clearly there has been a dramatic reduction in gaps since the early days of F1
The general trend towards reduced gaps means this factor favours recent years
Gaps nearly tripled between 1990 and 1994. Since this time the trend towards smaller gaps has continued
The current Mercedes dominated era has seen gaps increase somewhat from the lows set in 2012 (our overall points winner)