The data displays the number of people above the age of six participating in the most popular outdoor activities in the United States from 2009 to 2017. Hiking was the fourth-most popular outdoor activity in the United States in 2017 with 44.9 million total participants.
2009 | 32.6 | 44 | 43.3 | 48 | 44.7 |
2010 | 32.4 | 42.3 | 42.3 | 45.4 | 50.2 |
2011 | 34.5 | 42.5 | 43 | 46.2 | 51.5 |
2012 | 34.5 | 38 | 42.3 | 46 | 53.2 |
2013 | 34.38 | 36 | 46.6 | 45.9 | 57.6 |
2014 | 36.3 | 40.5 | 44 | 46 | 53.7 |
2015 | 37.2 | 40 | 43 | 45.7 | 51.5 |
2016 | 42.2 | 40.5 | 45.9 | 47.1 | 52.3 |
2017 | 44.9 | 41.8 | 47.5 | 49.1 | 55.9 |