That's an excellent document
@NickWallingford - in terms of wider perspectives and also real-life examples e.g. the passionfruit industry:
"The New Zealand passionfruit industry is a very small industry, with less than 50 commercial growers. The industry is worth around $1 million in annual orchard-gate return and generates $25,000 in levy income annually. The New Zealand Passionfruit Growers’ Association was able to use its levy income to part-fund a research and development project on passionfruit disease control at a total project cost of $447,700. This was a three year project, undertaken from 2006 to 2009 in conjunction with Plant and Food Research (Grant 06/094). The project studied a range of passionfruit diseases, their controls, and then prepared a field guide for growers. The total cash contribution of $260,000 for this project over the three years consisted of $200,000 Government contribution (Sustainable Farming Fund), levy contribution of $30,000 and $30,000 from the New Zealand Fruitgrowers Charitable Trust. There was also an in-kind contribution of $187,700, mainly from the industry"
So for $30,000 of levy funds, they got nearly 8 times that in co-funding.