The area a part-circle sprinkler irrigates, expressed in degrees of a circle. For example, a 90 degree arc provides quarter-circle coverage, while an 180 degree arc provides half-circle coverage.
The United States Census Bureau estimates the population of Hawaii was 1,431,603 on July 1, 2015; an increase of 5.24% since the 2010 United States Census. As of 2014, Hawaii had an estimated population of 1,431,603; an increase of 12,042 from the previous year and an increase of 71,302 (5.24%) since 2010. This includes a natural increase of 48,111 (96,028 births minus 47,917 deaths) and an increase due to net migration of 16,956 people into the state.
Hawaii ranked 42nd in population in the US with an estimated total of 1,244,898 in 2002, an increase of 2.8% since 2000. Between 1990 and 2000, Hawaii's population grew from 1,108,229 to 1,211,537, an increase of 9.3%. The population is projected to reach 1,342,000 by 2005 and 1.8 million by 2025.