<Li> 26--Carrie Underwood (2006--2017) </Li> <Li> 19--Tracy Lawrence (1992--1997) </Li> <Ul> <Li> 44--George Strait (last No. 1 on April 18, 2009) </Li> <Li> 40--Conway Twitty (last No. 1 on September 6, 1986) </Li> <Li> 38--Merle Haggard (last No. 1 on February 20, 1988) </Li> <Li> 35--Ronnie Milsap (last No. 1 on December 23, 1989) </Li> <Li> 33--Alabama (last No. 1 on June 4, 2011) </Li> <Li> 29--Charley Pride (last No. 1 on September 17, 1983) </Li> <Li> 28--Eddy Arnold (last No. 1 on October 19, 1968) </Li> <Li> 26--Alan Jackson </Li> <Li> 26--Tim McGraw </Li> <Li> 25--Reba McEntire </Li> <Li> 25--Dolly Parton </Li> </Ul> <Li> 44--George Strait (last No. 1 on April 18, 2009) </Li>

Who has the most number one country songs