Task: Question Answering
Input (English): Passage: The title track, "My Love Is Your Love (song)" was the fourth single from the album. It was a massive hit worldwide, becoming another signature song for Whitney. Firstly, the single was released in each country of Europe from June 1999, prior to the United States. Upon release, the song was popular immediately across Europe, and became a bigger hit during her My Love Is Your Love European Tour. In the U.K., it went straight to its peak position, number two, on the singles chart, the issue date of July 3, 1999. The single sold 525,000 copies, becoming the twenty-second best-selling single of 1999. In Germany, it peaked at number two and was certified Platinum for shipments of 500,000 copies by the Bundesverband Musikindustrie (BVMI). It also reached the number two in countries such as Austria, Ireland, the Netherlands, Sweden, and Switzerland. It went to top ten in Belgium, Denmark, France, and Norway. Eventually the single topped the Eurochart Hot 100 for a week, becoming her fourth number one single, and was positioned at number six in the Europes Top Singles list of 1999. In New Zealand, it peaked at number one for a week, which was Houstons third number-one single after 1987s "I Wanna Dance with Somebody (Who Loves Me)" and 1992s "I Will Always Love You". Likewise, it was a hit in the United States. The song debuted at number eighty-one on the Billboard Hot 100 chart in September 1999 and peaked at number four in January 2000, becoming her 22nd top ten hit. In addition, it reached the number two position on the Hot R&B Singles & Tracks chart, spending a total of twenty-nine weeks on the chart. The single sold 1,100,000 copies and was certified Platinum by the RIAA on December 14, 1999. Worldwide it sold over 3 million copies and became her third best-selling single ever, behind "I Will Always Love You" and "I Wanna Dance with Somebody (Who Loves Me)", with 12 million and 4.2 million copies sold, respectively. 
Question: How many spots on the United States Billboard charts did "My Love is Your Love" improve from its debut to its peak? 
Answer type: Number 
Output (English): 77.