The 61st launch this year as well as the 9th launch in August is by USA.

https://spaceflightnow.com/2019/08/2...-stick-launch/

The last Delta 4 launcher to fly in a single-core configuration rumbled into space Thursday morning from Cape Canaveral with a GPS navigation satellite, leaving United Launch Alliance with five more Delta 4-Heavy missions on contract through late 2023 before the Delta rocket family retires from service.

ULA’s final mission using a Delta 4-Medium rocket, which is powered by a single first stage booster core, lifted off at 9:06 a.m. EDT (1306 GMT) Thursday from Cape Canaveral’s Complex 37 launch pad.
Link to summary of launches by country in 2018

NUMBER OF LAUNCHES IN 2019 BY COUNTRY__________________________________________________ _____SUMMARY OF LAUNCHES IN 2018 BY COUNTRY
Country Launches Failures Partial Failures BEO Launches manned Launches _________________ Total Launches BEO Launches Manned Launches
United States 16 0 0 0 0 ___________________ 31 3 0
Russia 13 0 0 1 2 ___________________ 17 0 4
China 14 2 0 0 0 ___________________ 39 2 0
ESA 7 1 0 0 0 ___________________ 11 1 0
Japan 1 0 0 0 0 ___________________ 6 0 0
India 4 0 0 1 0 ___________________ 7 0 0
New Zealand 4 0 0 0 0 ___________________ 3 0 0
North Korea 0 0 0 0 0 ___________________ 0 0 0
Israel 0 0 0 0 0 ___________________ 0 0 0
Iran 2 2 0 0 0 ___________________ 0 0 0
TOTAL 61 5 0 2 2 ___________________ 114 6 4