Glen McGraths batting record:
138 innings, 51 not outs, 641 runs @7.36
140 partnerships, totalling 1,886 runs @ 13.47 per partnership, so not outs not included.
McGrath contributed 33.99% of the runs to his career partnerships.
With Steve Waugh
19 partnerships, totalling 252 runs, averaging 13.26, McGrath contributed 114 of those runs, or 45.2%
Unfortunately the records prior to 1997 don't tell you the over count when the wickets fell.
This affects the first 7 Waugh/McGrath partnerships.
In the 12 where we know how many balls the partnership lasted we have:
Average number of balls partnership lasted 26.33
Average score of those partnerships 16.50, of which McGrath averaged contributing 7.50 (45.4%)
Average number of balls faced in partnership: McGrath 15.58 (59.2%), Waugh 10.75 (40.8%).
If Waugh was batting for the team, he'd have the lions share of the strike.
Let's look at the opposite end of the scale!
With Adam Gilchrist
7 partnerships, totalling 194 runs, averaging 27.71, McGrath contributed 8 of those runs, or 4.12%
Average number of balls partnership lasted 26.57
Average number of balls faced in partnership: McGrath 10.71 (40.3%), Gilchrist 15.86 (59.7%)
Gilchrist averaged batting with McGrath the same amount of balls per partnerships as Waugh.
The difference was, Gilly took 60% of the strike, and they scored at 1.04 runs/ball.
Waugh took 40% of the strike, and they scored at 0.63 runs/ball
Gilly - 60% of the strike, and personally scored at around 1.68/ball
Waugh - 40% of the strike, and personally scored at around 0.84/ball - exactly half Gilly.
One protected the strike, and got on with it. One waited around trying to get the red ink!