Okay, thank you very much. So, just to set the scene first, and I think you made reference to it there, overall performance last year across the office was strong and we continued to see an increase in case load, and I think that's very important in terms of setting the context for what we're going to answer your question on.
We did see a small number of KPIs that weren't achieved, and, really, we experienced some big case loads—that didn't help us. When I spoke to committee last year, I did highlight the risk that we faced at that time. We'd seen year-on-year increasing case loads, and we anticipated that that would continue, and we knew that, if we weren't able to increase our staff resources, there was a risk that that would impact on service levels. And I suppose, in reality, that's what we have seen happen, and that is some of the reason that we're seeing that poor performance on those indicators that you've just referenced.
So, the overall picture last year was that we experienced a 3 per cent uplift in cases and a 2 per cent uplift in complaints, so that's in addition to uplifts in case load we've seen in previous years. And the difference between a case and a complaint is: a case is someone contacting us and saying, 'I want you to look at this.' A complaint is when we say, 'Actually, that's properly, duly made. It's in jurisdiction', and we then take it forward. But every contact we have requires work and requires resource to deal with it.
So, last year, we dealt with and closed over 3,000 complaints, and that's more than we've dealt with and closed in any other year, so, in terms of productivity, in terms of what we've dealt with, we have increased our activity. Ninety per cent of those complaints were closed at the assessment to initial investigation stage, and I think that's important as well, and that's in line with our KPI targets. And 75 per cent of those complaints were resolved early, through early resolution, and that is something we try to do for more simple, more straightforward complaints. It's better for the complainant and the public bodies that we can do that early. However, there was a smaller number of complaints, around 200, where they were more complex complaints—we do need to take those to a detailed investigation. And that is where we've had challenges in terms of hitting our targets, and, unfortunately, the majority of those investigations last year did go over the 12-month period, which is not what we would want and it's not the level of service that we are seeking to offer, but that is where we've seen the challenge and the pressure coming through on that case load.
In terms of the current year—I know we're looking back at last year, but I think it's just important to say that we're continuing to see an increase in the current year again, on top of those increases we had last year. And so, for the first two quarters of this year, there's no indication that the pressure on workload and case load is reducing—that seems to be increasing.