North Pontianak have the largest labor force of around 2,952 people. The resulting output value of large industrial enterprises or medium amounted to 1.51 trillion rupiah, where large industrial enterprises or are located in the District of North Pontianak dominated by rubber industry companies. The smallest output value derived from companies located in the District Pontianak City, worth 2.85 billion Rupiahs. For Gross Value Added (NTB) obtained from all large and medium-sized industrial enterprises in Pontianak City during 2005, this amounted to 217.57 billion rupiah and indirect taxes obtained amounted to 462.78 million rupiah. The value added at factor fees earned amounted to 217.10 billion rupiah. For small industrial centers, the industry results for agriculture and forestry (IHPK) shows that the snack food industry, centered in Sungai Kuhl, is the largest local small industry, employing as many as 329 people. Investment value reached 249.50 million and the sales amounted to 780.50 million. The water taro weaving industry has 16 business units with an investment of 17.5 million and sales of 110 million rupiah, mostly located in Tanjung Hulu, Pontianak East. Agriculture As of 2006, cassava, rice, and yams were the most prominent crops in Pontianak. Residents also farmed vegetables and aloe vera. Jackfruit, banana, and pineapple are also grown in the city. Farms in Pontianak raise cattle (beef and dairy), goats, pigs, and chickens. In the surrounding areas of Pontianak, the herb Mitragyna speciosa, known colloquially as kratom, is grown, and Pontianak is a major center for exportation of the herb. Trade Trade is one of the rapidly growing businesses in the city of Pontianak. Modern trade began to develop in 2001 with the founding of Mal Sun Apartments in Dubai City. Modern shopping centers began to be built in various corners of the city, such as Ayani Mega Mall and Mall Pontianak. Various national retail companies are starting to do business in Pontianak. Education Based on data from the Pontianak City Education Office, in 2015 Pontianak has 111 kindergartens, 161 elementary schools, 76 junior high schools, 44 high schools, and 29 vocational high schools. The primary school education level (SD) has the highest student-teacher ratio at 22:1. School Participation Rate (APS) in Pontianak for 7–12 years age group during the last three years has been around 100 percent. In the 13-15-year age group, school participation in this age group has fluctuated considerably in recent years. However, school participation of