the Boston and New York City markets (called "Federal order Class I"), Vermont was third in market share, with 10.6%; New York has 44.9% and Pennsylvania has 32.9%. In 2007, dairy farmers received a record $23.60 for (11.63 gallons at $2.03/gallon) of milk. This dropped in 2008 to $17 ($1.46/gallon). The average dairy farm produced pounds of milk annually in 2008. The dairy barn remains an iconic image of Vermont, but the 87% decrease in active dairy farms between 1947 and 2003 means that preservation of the dairy barns has increasingly become dependent upon a commitment to maintaining a legacy rather than basic need in the agricultural economy. The Vermont Barn Census, organized by a collaboration of educational and nonprofit state and local historic preservation programs, has developed educational and administrative systems for recording the number, condition, and features of barns throughout Vermont. In 2009, there were 543 organic farms. Twenty percent of the dairy farms were organic and 23% (128) vegetable farms were organic. Organic farming increased in 2006–07, but leveled off in 2008–09. A significant amount of milk is shipped into the Boston market. Therefore the Commonwealth of Massachusetts certifies that Vermont farms meet Massachusetts sanitary standards. Without this certification, a farmer may not sell milk for distribution into the bulk market. In 2019, two-thirds of all milk in New England was produced by Vermont dairies. Forestry Forest products have always been a staple to the economy, comprising 1% of the total gross state output and 9% of total manufacturing as of 2013. In 2007, Windham County contained the largest concentration of kilns for drying lumber east of the Mississippi River. The decline of farms has resulted in a regrowth of Vermont's forests due to ecological succession. Today, most of Vermont's forests are secondary. The state and non-profit organizations are actively encouraging regrowth and careful forest management. Over 78% of the land area of the state is forested compared to only 37% in the 1880s, when sheep farming was at its peak and large amounts of acreage were cleared for grazing. Over 85% of that area is non-industrial, private forestland owned by individuals or families. In 2013, of wood was harvested in Vermont. A large amount of Vermont forest products are exports with being shipped overseas plus an additional to Canada. Most of it was processed within the state. In this century the manufacture of wood products has