As you know, the government is engaged in a service review as we speak. We strongly believe that's a very positive development. Over the years, we and a number of people involved in the supply chain in the transportation industry have been frustrated by the abysmal lack of good, independent data on what's really going on out there. It doesn't matter whether you're talking about trucking, railways, shipping, maritime shipping, or whatever.
We are very hopeful that this study will result in some good data on what is happening in the overall supply chain when it comes to moving freight. And frankly, 75% of the freight in this country moves by rail. We think that's a first good step to take. We're hopeful that a panel discussion on that will identify where the soft points are and the good and bad aspects of the overall service levels in the industry. We think that's a much more constructive approach than going directly to cost.
I think the number you referred to was a specific dispute that went on with regard to hopper cars. That was arbitrated by the CTA and the matter was resolved. Going forward, I don't think there will be that difference in view between railways and suppliers on that item. In the last couple of years, my members have invested $35 million in addressing some of the design problems in the existing fleet of hopper cars, and we're fully committed to continuing that.