Year-over-year Canadian towable retail sales declined 9.8% in July and 8.5% for the first seven months, according to the latest report from Statistical Surveys Inc. a Canadian sales of recreational park trailers dropped 66.7% on low volume for the month and 40% year-to-date. Thor Industries Inc. was the overall Canadian towables sales leader through July with a 38.3% market share, followed by Forest River Inc. and Jayco Inc. .