The graph shows John’s weight over 4 years. The x-axis shows the year and the y-axis represents his weight in kilograms. In 1991, John weighed 68 kilograms. In 1992, John’s weight went up steadily to 70 kilograms. The next year, John’s weight increased dramatically from 70 kilograms to 74 kilograms. In 1994, his weight remained stable at 74 kilograms. The following year, there was a slight drop in John’s weight to 73 kilograms.