Outbreaks are still occurring, however, following importations of measles viruses from other world regions. Further importations and transfers of Mui Tsais were prohibited. Cocoa plantations were established along the littoral valleys, which resulted in large importations of slaves. The breed has not been substantially affected by importations of foreign horses. Commercial importations through Otay Mesa accounts for billions of dollars' worth of freight. Two other Japanese examples derive from Buddhist importations of Indian dragon myths. The Civil War changed all this, reducing importations and adding tenfold to the revenue required. The first importations into Australia were of milking cows carried on sailing ships. The first European importations of alpaca fiber were into Spain. The importations to Bhutan encouraged interest in the breed in other parts of Asia. In the 1990s, importations of kau chim sticks were available again in the US. This, however, does not include the revenue on car importations. The importations occasionally met with disastrous results, such as in the devastation in Australia. The most recent importations from India were of one hundred animals in the 1960s. During 1910 there was an increase in these importations.