LAME/AME ratios in Australia vary. Domestic terminals tend to have more LAMEs because it is usually one person only sent to a defect and it makes sense to sign the defect off themselves. The example I used was Domestic here. Without checking the exact numbers, I think the ratios in various other departments would be about -
Qantas Sydney International Terminal - 2.5 Lames per AME
Qantas Sydney Hangars - 1.5 LAMEs per AME
Qantas Heavy Maintenance Brisbane - 1 LAME per AME
An AME in Australia has a minimum 4 year apprenticeship behind them. This US ratio of 1 LAME per 3 AMEs is dangerous, particularly considering that most of them have less than 4 years in the job and in Australia would be considered apprentices.